- published: 05 Aug 2012
- views: 7950
Create your page here
-
remove the playlistChromium(iii) Oxide
-
remove the playlistLongest Videos
- remove the playlistChromium(iii) Oxide
- remove the playlistLongest Videos
back to playlist
Subscribe for future videos: http://bit.ly/AMchemistryYT
Like my video? leave a like and a response.
---------------------------------------------------------------------------------------------------------------------------------------
Hello guys, in today's video I will be showing you how to make chromium (III) oxide. It's really simple, all you need to do is set potassium dichromate on fire in a container. please visit http://www.youtube.com/user/neodymiumpain he has awesome videos. On some future video I will be uploading videos on chromium compounds and thermite.
---------------------------------------------------------------------------------------------------------------------------------------
Check out my Facebook and Twitter for updates and upcoming videos.
Facebook:
~ http://on.fb.me/15x1Lex
Twitter:
~ http://bit.ly/1CHHIrj
Instagram for behind the scenes pictures.
Instagram:
~ http://bit.ly/1utGEjH
---------------------------------------------------------------------------------------------------------------------------------------
AMchemistry is all about making chemistry fun and educational for audiences of all ages. This channel ranges from kitchen chemistry to more advanced chemistry experiments.
```````````````````````````````````````````````````````````````````````````````````````````````````````````````````````````````````````
Want to become a Youtube Partner? Click the link below to check if your channel qualifies. Click here: http://awe.sm/s7i0J
```````````````````````````````````````````````````````````````````````````````````````````````````````````````````````````````````````
In this video we tried to make some impure Chromate solution.
We mixed some Chromium(III)Oxide with Sodium Carbonate and some Potassium Nitrate and heated it using a burner till it became all brown-yellow. After it cooled down water was added and the yellow solution was separated from the green insoluble rests.
Next we tried to test it for the formation of the blue Peroxo complex. So we added some Sulfuric Acid to it. Upon addition the Chromate molecules condensed to the orange Dichromate. For some reason it turned darker and green Cr(III) formed again on the bottom. I am not sure why it reacted that way. Still it turned blue after Hydrogen Peroxide was added proofing that we indeed made some weak Chromate solution.
- published: 05 Sep 2016
- views: 1010
This video uses chromium (III) chloride solution to illustrate and explain 3 important chemical aspects of metal complexes: deprotonation, ligand substitution and the acidic behaviour of 3+ cations. In deprotonation a base removes protons from water ligands bonded to the metal ion in solution. In ligand exchange one ligand is replaced by another (e.g. water ligands by ammonia ligands). When metal 3+ cations are mixed with a carbonate solution a metal carbonate precipitate is not formed. As such solutions are more acidic than those of 2+ cations, they decompose the carbonate ion to form water and carbon dioxide gas.
- published: 27 Oct 2014
- views: 2413
Glassware generously provided by http://www.alchemylabsupply.com/
Use the discount code "copper" for a 5% discount.
Donate to NurdRage!
Through Patreon (preferred): https://www.patreon.com/NurdRage
Through Bitcoin: 1NurdRAge7PNR4ULrbrpcYvc9RC4LDp9pS
In this video we make chromium based thermite.
JC founder of Gospik
Only HR
Scott Malcheski
advisable
Michael Zappe
Emil Mikulic
Dino Capiaghi
Wesley Gardner
LVE
Jack kelly
Meshal Al-Enazi
Lord Martin Hill
Matthew Brunette
Collin Wright
Simon Bitdiddle
Cullen Purkis
Samuel Pelzer
Carl Potter
Max Loutzenheiser
Mathieu Robillard
Phillip Hutchings
- published: 14 Jan 2016
- views: 70040
In this video the preparation of chromium(VI) from a chromium(III) salt is showed. And some of the properties of the hexavalent chromium are showed.
Patreon: https://www.patreon.com/randomexperimentsinternational
- published: 09 May 2015
- views: 4487
Огненная метель [каталитическое горение аммиака на оксиде хрома (III)]
- published: 22 May 2017
- views: 47
This video demonstrates and explains the reduction of a green chromium (IIII) solution using granulated zinc and sulfuric acid. To explain the underlying chemistry, half-cell reations and reduction potentials are employed.
- published: 27 Oct 2014
- views: 1578
Facebook: https://www.facebook.com/thoisoi2
Patreon: https://www.patreon.com/Thoisoi?ty=h
Music: http://audiomicro.com
Interesting chemical experiments: http://www.m.chemicum.com/
Hello everyone. Today we will conduct a reaction with chromium oxide 3. Chromium oxide will serve us as a catalyst. We will get the chromium oxide out of the reaction of the decomposition of ammonium dichromate.
Do not attempt to repeat following experiment by yourself!
For the reaction, we will take a metal cup and pour there a little, though nevermind, let's just empty the entire ammonium of dichromate.
Next, we ignite the substance using a burner and then observe the beautiful decay of the substance.
Well, the reaction has been completed now and we've got quite a lot of chromium oxide 3 as a result.
The first reaction with it is going to be the catalytic oxidation of ammonia using chromium oxide 3.
We will get ammonia gas from a Wurtz flask. To obtain it, we need a mixture of sodium hydroxide and ammonium nitrate.
Now pour the reagents into the flask. Since ammonia is lighter than air, it is best to collect it from the bottom of the vessel. To start the reaction, we’ll add some water to the mixture.
The reaction has started and now ammonia is entering the glass jar. After the jar is filled with ammonia, we need to heat up the chromium oxide 3.
Light up the burner, get a bit of chromium oxide 3 into a spoon and heat it up.
Now let’s add the retrieved red-hot chromium oxide into our jar.
What did just happen during this reaction, you could wonder. Ammonia in the jar has reacted with oxygen. The catalyst for the reaction was chromium oxide 3.
This reaction produces nitrogen oxide and water.
For the next reaction let’s take a metal cup and pour there a small amount of chromium oxide.
Place a piece of cotton wool soaked in ethyl alcohol onto the cup . Then, ignite the cotton. Now quickly sprinkle the cotton wool with chromium oxide.
During this reaction, chromium oxide catalyzes the oxidation of ethanol to acetaldehyde.
By the way, the smell of acetaldehyde is very much like a quick-drying super glue. Facebook: https://www.facebook.com/thoisoi2
Patreon: https://www.patreon.com/Thoisoi?ty=h
Music: http://audiomicro.com
- published: 04 Dec 2014
- views: 849450
Chromium oxide is the inorganic compound of the formula Cr
2O
3.It is one of the principal oxides of chromium and is used as a pigment.In nature, it occurs as the rare mineral eskolaite.
---Image-Copyright-and-Permission---
About the author(s): Achim Hering
License: Creative Commons Attribution 3.0 (CC BY 3.0)
Author(s): Achim Hering (https://commons.wikimedia.org/wiki/User:Achim_Hering)
---Image-Copyright-and-Permission---
This channel is dedicated to make Wikipedia, one of the biggest knowledge databases in the world available to people with limited vision.
Article available under a Creative Commons license
Image source in video
- published: 25 Aug 2016
- views: 248
developed with YouTube
Chromium
Chromium is a chemical element with symbol Cr and atomic number 24. It is the first element in Group 6. It is a steely-grey, lustrous, hard and brittle metal which takes a high polish, resists tarnishing, and has a high melting point. The name of the element is derived from the Greek word χρῶμα, chrōma, meaning color, because many of its compounds are intensely colored.
Chromium oxide was used by the Chinese in the Qin dynasty over 2,000 years ago to coat metal weapons found with the Terracotta Army. Chromium was discovered as an element after it came to the attention of the Western world in the red crystalline mineral crocoite (lead(II) chromate), discovered in 1761 and initially used as a pigment. Louis Nicolas Vauquelin first isolated chromium metal from this mineral in 1797. Since Vauquelin's first production of metallic chromium, small amounts of native (free) chromium metal have been discovered in rare minerals, but these are not used commercially. Instead, nearly all chromium is commercially extracted from the single commercially viable ore chromite, which is iron chromium oxide (FeCr2O4). Chromite is also now the chief source of chromium for chromium pigments.
This page contains text from Wikipedia, the Free Encyclopedia -
https://wn.com/Chromium
This article is licensed under the Creative Commons Attribution-ShareAlike 3.0 Unported License, which means that you can copy and modify it as long as the entire work (including additions) remains under this license.
This article is licensed under the Creative Commons Attribution-ShareAlike 3.0 Unported License, which means that you can copy and modify it as long as the entire work (including additions) remains under this license.
III
III (iii) may refer to:
Companies
Music
Other uses
See also
This page contains text from Wikipedia, the Free Encyclopedia -
https://wn.com/III
This article is licensed under the Creative Commons Attribution-ShareAlike 3.0 Unported License, which means that you can copy and modify it as long as the entire work (including additions) remains under this license.
This article is licensed under the Creative Commons Attribution-ShareAlike 3.0 Unported License, which means that you can copy and modify it as long as the entire work (including additions) remains under this license.
- Loading...
-
2:30Make Chromium III Oxide
Make Chromium III OxideMake Chromium III Oxide
Subscribe for future videos: http://bit.ly/AMchemistryYT Like my video? leave a like and a response. --------------------------------------------------------------------------------------------------------------------------------------- Hello guys, in today's video I will be showing you how to make chromium (III) oxide. It's really simple, all you need to do is set potassium dichromate on fire in a container. please visit http://www.youtube.com/user/neodymiumpain he has awesome videos. On some future video I will be uploading videos on chromium compounds and thermite. --------------------------------------------------------------------------------------------------------------------------------------- Check out my Facebook and Twitter for updates and upcoming videos. Facebook: ~ http://on.fb.me/15x1Lex Twitter: ~ http://bit.ly/1CHHIrj Instagram for behind the scenes pictures. Instagram: ~ http://bit.ly/1utGEjH --------------------------------------------------------------------------------------------------------------------------------------- AMchemistry is all about making chemistry fun and educational for audiences of all ages. This channel ranges from kitchen chemistry to more advanced chemistry experiments. ``````````````````````````````````````````````````````````````````````````````````````````````````````````````````````````````````````` Want to become a Youtube Partner? Click the link below to check if your channel qualifies. Click here: http://awe.sm/s7i0J ``````````````````````````````````````````````````````````````````````````````````````````````````````````````````````````````````````` -
1:013.07 Formula for chromium(III) oxide
3.07 Formula for chromium(III) oxide3.07 Formula for chromium(III) oxide
-
1:22Chromium Chemistry: Chromate from Chromium(III)Oxide
Chromium Chemistry: Chromate from Chromium(III)OxideChromium Chemistry: Chromate from Chromium(III)Oxide
In this video we tried to make some impure Chromate solution. We mixed some Chromium(III)Oxide with Sodium Carbonate and some Potassium Nitrate and heated it using a burner till it became all brown-yellow. After it cooled down water was added and the yellow solution was separated from the green insoluble rests. Next we tried to test it for the formation of the blue Peroxo complex. So we added some Sulfuric Acid to it. Upon addition the Chromate molecules condensed to the orange Dichromate. For some reason it turned darker and green Cr(III) formed again on the bottom. I am not sure why it reacted that way. Still it turned blue after Hydrogen Peroxide was added proofing that we indeed made some weak Chromate solution. -
0:12Chromium (III) Oxide and Ammonia "fireflys"
Chromium (III) Oxide and Ammonia "fireflys"Chromium (III) Oxide and Ammonia "fireflys"
-
4:47Metal Complexes 8. Chromium (III) chemistry
Metal Complexes 8. Chromium (III) chemistryMetal Complexes 8. Chromium (III) chemistry
This video uses chromium (III) chloride solution to illustrate and explain 3 important chemical aspects of metal complexes: deprotonation, ligand substitution and the acidic behaviour of 3+ cations. In deprotonation a base removes protons from water ligands bonded to the metal ion in solution. In ligand exchange one ligand is replaced by another (e.g. water ligands by ammonia ligands). When metal 3+ cations are mixed with a carbonate solution a metal carbonate precipitate is not formed. As such solutions are more acidic than those of 2+ cations, they decompose the carbonate ion to form water and carbon dioxide gas. -
6:00Make Thermite from Chromium Oxide
Make Thermite from Chromium OxideMake Thermite from Chromium Oxide
Glassware generously provided by http://www.alchemylabsupply.com/ Use the discount code "copper" for a 5% discount. Donate to NurdRage! Through Patreon (preferred): https://www.patreon.com/NurdRage Through Bitcoin: 1NurdRAge7PNR4ULrbrpcYvc9RC4LDp9pS In this video we make chromium based thermite. JC founder of Gospik Only HR Scott Malcheski advisable Michael Zappe Emil Mikulic Dino Capiaghi Wesley Gardner LVE Jack kelly Meshal Al-Enazi Lord Martin Hill Matthew Brunette Collin Wright Simon Bitdiddle Cullen Purkis Samuel Pelzer Carl Potter Max Loutzenheiser Mathieu Robillard Phillip Hutchings -
4:58Experiments with Chromium(VI)
Experiments with Chromium(VI)Experiments with Chromium(VI)
In this video the preparation of chromium(VI) from a chromium(III) salt is showed. And some of the properties of the hexavalent chromium are showed. Patreon: https://www.patreon.com/randomexperimentsinternational -
1:22"Fire blizzard" [catalytic combustion of ammonia on chromium (III) oxide]
"Fire blizzard" [catalytic combustion of ammonia on chromium (III) oxide]"Fire blizzard" [catalytic combustion of ammonia on chromium (III) oxide]
Огненная метель [каталитическое горение аммиака на оксиде хрома (III)] -
1:09Metal Complexes 6. Reduction of chromium (III) to Cr (II)
Metal Complexes 6. Reduction of chromium (III) to Cr (II)Metal Complexes 6. Reduction of chromium (III) to Cr (II)
This video demonstrates and explains the reduction of a green chromium (IIII) solution using granulated zinc and sulfuric acid. To explain the underlying chemistry, half-cell reations and reduction potentials are employed. -
3:44Chemical Volcano and Fire Blizzard with Chromium Oxide!
Chemical Volcano and Fire Blizzard with Chromium Oxide!Chemical Volcano and Fire Blizzard with Chromium Oxide!
Facebook: https://www.facebook.com/thoisoi2 Patreon: https://www.patreon.com/Thoisoi?ty=h Music: http://audiomicro.com Interesting chemical experiments: http://www.m.chemicum.com/ Hello everyone. Today we will conduct a reaction with chromium oxide 3. Chromium oxide will serve us as a catalyst. We will get the chromium oxide out of the reaction of the decomposition of ammonium dichromate. Do not attempt to repeat following experiment by yourself! For the reaction, we will take a metal cup and pour there a little, though nevermind, let's just empty the entire ammonium of dichromate. Next, we ignite the substance using a burner and then observe the beautiful decay of the substance. Well, the reaction has been completed now and we've got quite a lot of chromium oxide 3 as a result. The first reaction with it is going to be the catalytic oxidation of ammonia using chromium oxide 3. We will get ammonia gas from a Wurtz flask. To obtain it, we need a mixture of sodium hydroxide and ammonium nitrate. Now pour the reagents into the flask. Since ammonia is lighter than air, it is best to collect it from the bottom of the vessel. To start the reaction, we’ll add some water to the mixture. The reaction has started and now ammonia is entering the glass jar. After the jar is filled with ammonia, we need to heat up the chromium oxide 3. Light up the burner, get a bit of chromium oxide 3 into a spoon and heat it up. Now let’s add the retrieved red-hot chromium oxide into our jar. What did just happen during this reaction, you could wonder. Ammonia in the jar has reacted with oxygen. The catalyst for the reaction was chromium oxide 3. This reaction produces nitrogen oxide and water. For the next reaction let’s take a metal cup and pour there a small amount of chromium oxide. Place a piece of cotton wool soaked in ethyl alcohol onto the cup . Then, ignite the cotton. Now quickly sprinkle the cotton wool with chromium oxide. During this reaction, chromium oxide catalyzes the oxidation of ethanol to acetaldehyde. By the way, the smell of acetaldehyde is very much like a quick-drying super glue. Facebook: https://www.facebook.com/thoisoi2 Patreon: https://www.patreon.com/Thoisoi?ty=h Music: http://audiomicro.com -
4:49Chromium(III) oxide
Chromium(III) oxideChromium(III) oxide
Chromium oxide is the inorganic compound of the formula Cr 2O 3.It is one of the principal oxides of chromium and is used as a pigment.In nature, it occurs as the rare mineral eskolaite. ---Image-Copyright-and-Permission--- About the author(s): Achim Hering License: Creative Commons Attribution 3.0 (CC BY 3.0) Author(s): Achim Hering (https://commons.wikimedia.org/wiki/User:Achim_Hering) ---Image-Copyright-and-Permission--- This channel is dedicated to make Wikipedia, one of the biggest knowledge databases in the world available to people with limited vision. Article available under a Creative Commons license Image source in video -
0:40Chromium III oxide crystalline structure
Chromium III oxide crystalline structureChromium III oxide crystalline structure
-
10:57TEST CHROMIUM III IONS
TEST CHROMIUM III IONS -
2:42Chromium Chemistry: [Cr(OH)6](3-) and Oxidation to Chromate
Chromium Chemistry: [Cr(OH)6](3-) and Oxidation to ChromateChromium Chemistry: [Cr(OH)6](3-) and Oxidation to Chromate
In this video we will show another method to make Chromate(VI) from Chromium(III). Now this will only work if you manage to get Chromium(III) into solution. Some say that the Oxide which is readily available and therefore a cheap and easily accessible source for Chromate will dissolve in strongly alkaline conditions. We never really managed to dissolve it so for Chromium Oxide it might be better to use the other method we showed in a previous video. Now as Potassium Hydroxide is added to some Chromium(III)Chloride the solution turns dark blue-purple with the formation of Cr(OH)3 or better [Cr(OH)3(H2O)3]. As more Hydroxide is added the three remaining water ligands are exchanged by OH(-) forming the soluble [Cr(OH)6](3-). Some of this green solution is then transfered to a test tube and Hydrogen Peroxide is added. The mixture is heated and the Peroxide reacts with the Cr(III) forming Cr(VI). To test it we simply added some Sulfuric Acid. Since Hydrogen Peroxide is already present it just needs to be acidified to form the blue CrO5 and indicate the presence of Cr(VI). Additional information: Let's take a look at this deprotonation step above. Now we started using CrCl3 in water. This is already hard to describe as Cr(III) is really famous for its isomerism. We will have a video on that as well. It changes color between green/blue and purple quite for many Cr(III) compounds. Although pure [Cr(H2O)6]Cl3 is purple and our solution was dark green which is probably [CrCl2(H2O)4]Cl we will treat it as [Cr(H2O)6](3+) for a moment to make things easier. Now as one H2O is deprotonated [Cr(OH)(H2O)5](2+) forms. Two of them can form a dimer (much like Fe does) [(H2O)4Cr-(OH)2-Cr(H2O)4](4+) which has two Cr(III) connected by two OH-bridging ligands. So it is not a (OH)2 group but two separate OH(-), I just wasn't sure how to write this here. Bigger complexes form as more OH(-) is added like [Cr3(OH)4(H2O)9](5+) for example till Cr(OH)3 or [Cr(OH)3(H2O)3] has formed. All these multinuclear compounds have the Cr(III) octahedrally coordinated by 6 Oxygen atoms. Now the distance of Cr to Cr is quite big and the Cr(III) repel each other. On one hand this kinda distorts the octahedron, on the other hand is this complex just a bridged one and no cluster compound (so no Cr-Cr bond)! Cr(OH)3 is amphoteric, so it can react with acids to form [Cr(H2O)6](3+) again or with more base to form the [Cr(OH)6](3-). -
1:01Thermite - Chromium(III) Oxide (Cr2O3) - 1
Thermite - Chromium(III) Oxide (Cr2O3) - 1Thermite - Chromium(III) Oxide (Cr2O3) - 1
A 100 gram of Cr2O3 thermite reaction. The reaction proceeds very slowly, not unlike Titanium(IV) Oxide thermite. Afterward, small chunks of shiny Chromium metal are found in the cooled remains. http://www.amazingrust.com/Experiments/how_to/Thermite_pics-videos.html -
0:15Very exciting chemistry Ammonia + chromium III oxide = true
Very exciting chemistry Ammonia + chromium III oxide = trueVery exciting chemistry Ammonia + chromium III oxide = true
-
1:56Cool chemical volcano experiment - Ammonium Dichromate
Cool chemical volcano experiment - Ammonium DichromateCool chemical volcano experiment - Ammonium Dichromate
It's classic chemistry experiment. In use orange substance - Ammonium Dichromate. Ammonium dichromate decomposition (burning) reaction. This reaction produce steam, nitrogen gas and Chromium (III) oxide. -
7:54how to make a basic chromium oxide pasted balsa strop
how to make a basic chromium oxide pasted balsa strophow to make a basic chromium oxide pasted balsa strop
budget DIY pasted strop that every straight razor and knife user should make. SUBSCRIBE to my channel for more instructional videos www.instagram.com/kmrazordesigns www.facebook.com/kmrazordesigns advice on using the strop. Use it like a strop NOT A HONE! heel leading and as little pressure as possible. my general preference is approximately 50 laps to adjust the edge to a chromium oxide finished edge, or 1-2 laps per shave to maintain an edge (for example 10 laps after every 10 shaves). I will post a demonstration video soon. for those of you in the UK this is where i get my crox paste from: http://www.ebay.co.uk/itm/chromium-oxide-paste-for-razors-knives-or-metal-polishing-/132051905422?hash=item1ebee82b8e:g:dUkAAOSwQJhUbIvz -
14:48HOW TO MAKE CHROMIUM HYDROXIDE/eventually reacting with CO2 to form chromium carbonate in the end
HOW TO MAKE CHROMIUM HYDROXIDE/eventually reacting with CO2 to form chromium carbonate in the endHOW TO MAKE CHROMIUM HYDROXIDE/eventually reacting with CO2 to form chromium carbonate in the end
HOW TO MAKE CHROMIUM HYDROXIDE.............This is an easy but long experiment. The short version is take some chromium 3 salt...in this case chromium chloride.... and do a metathesis reaction with NaOH. This is done simple by dissolving the 2 salts in water and then mixing. CrOH will precipitate out. Then wash with water at least 7 times and removing at least 75% of the water after each wash. After washes you can filter but this will take at least a day or 2 with a vacuum pump and you will need to cycle the pump on every 5 to 15 minutes for about 3 minutes.....otherwise you will burn out your pump. If you use gravity filtration it will take months if not a year to filter a whole mole. This stuff plugs up filters quick. Anyways if you dont filter it you can just try to get as much water out as you can and then evaporate the rest of the water off and dry it with heat................thats it............keep in mind we started with 52 grams (1 mole) of metal chromium in a previous video and now we are one step away from making potassium dichromate................because it took so long to do the experiement the chromium hydroxide is mostly or all chromium carbonate because of all the CO2 in the water. No mater ....FOR MAKING DICHROMATE IT WILL NOT MATTER. Hydroxide or carbonate will do. -
1:17"Fire blizzard" [catalytic combustion of ammonia on chromium (III) oxide] - 2
"Fire blizzard" [catalytic combustion of ammonia on chromium (III) oxide] - 2 -
1:01
3.07 Formula for chromium(III) oxide
3.07 Formula for chromium(III) oxide3.07 Formula for chromium(III) oxide
-
0:40
Chromium III oxide crystalline structure
Chromium III oxide crystalline structureChromium III oxide crystalline structure
-
0:12
Chromium (III) Oxide and Ammonia "fireflys"
Chromium (III) Oxide and Ammonia "fireflys"Chromium (III) Oxide and Ammonia "fireflys"
-
1:39Thermite
Thermite -
1:27Cr2O3 to CrO3
Cr2O3 to CrO3
developed with YouTube
-
Make Chromium III Oxide
Subscribe for future videos: http://bit.ly/AMchemistryYT Like my video? leave a like and a response. --------------------------------------------------------------------------------------------------------------------------------------- Hello guys, in today's video I will be showing you how to make chromium (III) oxide. It's really simple, all you need to do is set potassium dichromate on fire in a container. please visit http://www.youtube.com/user/neodymiumpain he has awesome videos. On some future video I will be uploading videos on chromium compounds and thermite. --------------------------------------------------------------------------------------------------------------------------------------- Check out my Facebook and Twitter for updates and upcoming videos. Facebook: ~ http://o...
published: 05 Aug 2012 -
3.07 Formula for chromium(III) oxide
published: 24 May 2016 -
Chromium Chemistry: Chromate from Chromium(III)Oxide
In this video we tried to make some impure Chromate solution. We mixed some Chromium(III)Oxide with Sodium Carbonate and some Potassium Nitrate and heated it using a burner till it became all brown-yellow. After it cooled down water was added and the yellow solution was separated from the green insoluble rests. Next we tried to test it for the formation of the blue Peroxo complex. So we added some Sulfuric Acid to it. Upon addition the Chromate molecules condensed to the orange Dichromate. For some reason it turned darker and green Cr(III) formed again on the bottom. I am not sure why it reacted that way. Still it turned blue after Hydrogen Peroxide was added proofing that we indeed made some weak Chromate solution.
published: 05 Sep 2016 -
Chromium (III) Oxide and Ammonia "fireflys"
published: 27 Mar 2013 -
Metal Complexes 8. Chromium (III) chemistry
This video uses chromium (III) chloride solution to illustrate and explain 3 important chemical aspects of metal complexes: deprotonation, ligand substitution and the acidic behaviour of 3+ cations. In deprotonation a base removes protons from water ligands bonded to the metal ion in solution. In ligand exchange one ligand is replaced by another (e.g. water ligands by ammonia ligands). When metal 3+ cations are mixed with a carbonate solution a metal carbonate precipitate is not formed. As such solutions are more acidic than those of 2+ cations, they decompose the carbonate ion to form water and carbon dioxide gas.
published: 27 Oct 2014 -
Make Thermite from Chromium Oxide
Glassware generously provided by http://www.alchemylabsupply.com/ Use the discount code "copper" for a 5% discount. Donate to NurdRage! Through Patreon (preferred): https://www.patreon.com/NurdRage Through Bitcoin: 1NurdRAge7PNR4ULrbrpcYvc9RC4LDp9pS In this video we make chromium based thermite. JC founder of Gospik Only HR Scott Malcheski advisable Michael Zappe Emil Mikulic Dino Capiaghi Wesley Gardner LVE Jack kelly Meshal Al-Enazi Lord Martin Hill Matthew Brunette Collin Wright Simon Bitdiddle Cullen Purkis Samuel Pelzer Carl Potter Max Loutzenheiser Mathieu Robillard Phillip Hutchings
published: 14 Jan 2016 -
Experiments with Chromium(VI)
In this video the preparation of chromium(VI) from a chromium(III) salt is showed. And some of the properties of the hexavalent chromium are showed. Patreon: https://www.patreon.com/randomexperimentsinternational
published: 09 May 2015 -
"Fire blizzard" [catalytic combustion of ammonia on chromium (III) oxide]
Огненная метель [каталитическое горение аммиака на оксиде хрома (III)]
published: 22 May 2017 -
Metal Complexes 6. Reduction of chromium (III) to Cr (II)
This video demonstrates and explains the reduction of a green chromium (IIII) solution using granulated zinc and sulfuric acid. To explain the underlying chemistry, half-cell reations and reduction potentials are employed.
published: 27 Oct 2014 -
Chemical Volcano and Fire Blizzard with Chromium Oxide!
Facebook: https://www.facebook.com/thoisoi2 Patreon: https://www.patreon.com/Thoisoi?ty=h Music: http://audiomicro.com Interesting chemical experiments: http://www.m.chemicum.com/ Hello everyone. Today we will conduct a reaction with chromium oxide 3. Chromium oxide will serve us as a catalyst. We will get the chromium oxide out of the reaction of the decomposition of ammonium dichromate. Do not attempt to repeat following experiment by yourself! For the reaction, we will take a metal cup and pour there a little, though nevermind, let's just empty the entire ammonium of dichromate. Next, we ignite the substance using a burner and then observe the beautiful decay of the substance. Well, the reaction has been completed now and we've got quite a lot of chromium oxide 3 as a result. The f...
published: 04 Dec 2014 -
Chromium(III) oxide
Chromium oxide is the inorganic compound of the formula Cr 2O 3.It is one of the principal oxides of chromium and is used as a pigment.In nature, it occurs as the rare mineral eskolaite. ---Image-Copyright-and-Permission--- About the author(s): Achim Hering License: Creative Commons Attribution 3.0 (CC BY 3.0) Author(s): Achim Hering (https://commons.wikimedia.org/wiki/User:Achim_Hering) ---Image-Copyright-and-Permission--- This channel is dedicated to make Wikipedia, one of the biggest knowledge databases in the world available to people with limited vision. Article available under a Creative Commons license Image source in video
published: 25 Aug 2016 -
Chromium III oxide crystalline structure
published: 21 Sep 2016 -
-
Chromium Chemistry: [Cr(OH)6](3-) and Oxidation to Chromate
In this video we will show another method to make Chromate(VI) from Chromium(III). Now this will only work if you manage to get Chromium(III) into solution. Some say that the Oxide which is readily available and therefore a cheap and easily accessible source for Chromate will dissolve in strongly alkaline conditions. We never really managed to dissolve it so for Chromium Oxide it might be better to use the other method we showed in a previous video. Now as Potassium Hydroxide is added to some Chromium(III)Chloride the solution turns dark blue-purple with the formation of Cr(OH)3 or better [Cr(OH)3(H2O)3]. As more Hydroxide is added the three remaining water ligands are exchanged by OH(-) forming the soluble [Cr(OH)6](3-). Some of this green solution is then transfered to a test tube an...
published: 19 Sep 2016 -
Thermite - Chromium(III) Oxide (Cr2O3) - 1
A 100 gram of Cr2O3 thermite reaction. The reaction proceeds very slowly, not unlike Titanium(IV) Oxide thermite. Afterward, small chunks of shiny Chromium metal are found in the cooled remains. http://www.amazingrust.com/Experiments/how_to/Thermite_pics-videos.html
published: 12 Aug 2017 -
Very exciting chemistry Ammonia + chromium III oxide = true
published: 16 Nov 2017 -
Cool chemical volcano experiment - Ammonium Dichromate
It's classic chemistry experiment. In use orange substance - Ammonium Dichromate. Ammonium dichromate decomposition (burning) reaction. This reaction produce steam, nitrogen gas and Chromium (III) oxide.
published: 17 Jun 2014 -
how to make a basic chromium oxide pasted balsa strop
budget DIY pasted strop that every straight razor and knife user should make. SUBSCRIBE to my channel for more instructional videos www.instagram.com/kmrazordesigns www.facebook.com/kmrazordesigns advice on using the strop. Use it like a strop NOT A HONE! heel leading and as little pressure as possible. my general preference is approximately 50 laps to adjust the edge to a chromium oxide finished edge, or 1-2 laps per shave to maintain an edge (for example 10 laps after every 10 shaves). I will post a demonstration video soon. for those of you in the UK this is where i get my crox paste from: http://www.ebay.co.uk/itm/chromium-oxide-paste-for-razors-knives-or-metal-polishing-/132051905422?hash=item1ebee82b8e:g:dUkAAOSwQJhUbIvz
published: 04 Jan 2017 -
HOW TO MAKE CHROMIUM HYDROXIDE/eventually reacting with CO2 to form chromium carbonate in the end
HOW TO MAKE CHROMIUM HYDROXIDE.............This is an easy but long experiment. The short version is take some chromium 3 salt...in this case chromium chloride.... and do a metathesis reaction with NaOH. This is done simple by dissolving the 2 salts in water and then mixing. CrOH will precipitate out. Then wash with water at least 7 times and removing at least 75% of the water after each wash. After washes you can filter but this will take at least a day or 2 with a vacuum pump and you will need to cycle the pump on every 5 to 15 minutes for about 3 minutes.....otherwise you will burn out your pump. If you use gravity filtration it will take months if not a year to filter a whole mole. This stuff plugs up filters quick. Anyways if you dont filter it you can just try to get as ...
published: 08 Jan 2017 -
-
3.07 Formula for chromium(III) oxide
published: 24 May 2016 -
Chromium III oxide crystalline structure
published: 21 Sep 2016 -
Chromium (III) Oxide and Ammonia "fireflys"
published: 27 Mar 2013 -
-
developed with YouTube
Make Chromium III Oxide
- Order: Reorder
- Duration: 2:30
- Updated: 05 Aug 2012
- views: 7950
Subscribe for future videos: http://bit.ly/AMchemistryYT
Like my video? leave a like and a response.
-----------------------------------------------------------...
Subscribe for future videos: http://bit.ly/AMchemistryYT
Like my video? leave a like and a response.
---------------------------------------------------------------------------------------------------------------------------------------
Hello guys, in today's video I will be showing you how to make chromium (III) oxide. It's really simple, all you need to do is set potassium dichromate on fire in a container. please visit http://www.youtube.com/user/neodymiumpain he has awesome videos. On some future video I will be uploading videos on chromium compounds and thermite.
---------------------------------------------------------------------------------------------------------------------------------------
Check out my Facebook and Twitter for updates and upcoming videos.
Facebook:
~ http://on.fb.me/15x1Lex
Twitter:
~ http://bit.ly/1CHHIrj
Instagram for behind the scenes pictures.
Instagram:
~ http://bit.ly/1utGEjH
---------------------------------------------------------------------------------------------------------------------------------------
AMchemistry is all about making chemistry fun and educational for audiences of all ages. This channel ranges from kitchen chemistry to more advanced chemistry experiments.
```````````````````````````````````````````````````````````````````````````````````````````````````````````````````````````````````````
Want to become a Youtube Partner? Click the link below to check if your channel qualifies. Click here: http://awe.sm/s7i0J
```````````````````````````````````````````````````````````````````````````````````````````````````````````````````````````````````````
https://wn.com/Make_Chromium_Iii_Oxide
Subscribe for future videos: http://bit.ly/AMchemistryYT
Like my video? leave a like and a response.
---------------------------------------------------------------------------------------------------------------------------------------
Hello guys, in today's video I will be showing you how to make chromium (III) oxide. It's really simple, all you need to do is set potassium dichromate on fire in a container. please visit http://www.youtube.com/user/neodymiumpain he has awesome videos. On some future video I will be uploading videos on chromium compounds and thermite.
---------------------------------------------------------------------------------------------------------------------------------------
Check out my Facebook and Twitter for updates and upcoming videos.
Facebook:
~ http://on.fb.me/15x1Lex
Twitter:
~ http://bit.ly/1CHHIrj
Instagram for behind the scenes pictures.
Instagram:
~ http://bit.ly/1utGEjH
---------------------------------------------------------------------------------------------------------------------------------------
AMchemistry is all about making chemistry fun and educational for audiences of all ages. This channel ranges from kitchen chemistry to more advanced chemistry experiments.
```````````````````````````````````````````````````````````````````````````````````````````````````````````````````````````````````````
Want to become a Youtube Partner? Click the link below to check if your channel qualifies. Click here: http://awe.sm/s7i0J
```````````````````````````````````````````````````````````````````````````````````````````````````````````````````````````````````````
- published: 05 Aug 2012
- views: 7950
3.07 Formula for chromium(III) oxide
- Order: Reorder
- Duration: 1:01
- Updated: 24 May 2016
- views: 827
- published: 24 May 2016
- views: 827
Chromium Chemistry: Chromate from Chromium(III)Oxide
- Order: Reorder
- Duration: 1:22
- Updated: 05 Sep 2016
- views: 1010
In this video we tried to make some impure Chromate solution.
We mixed some Chromium(III)Oxide with Sodium Carbonate and some Potassium Nitrate and heated it us...
In this video we tried to make some impure Chromate solution.
We mixed some Chromium(III)Oxide with Sodium Carbonate and some Potassium Nitrate and heated it using a burner till it became all brown-yellow. After it cooled down water was added and the yellow solution was separated from the green insoluble rests.
Next we tried to test it for the formation of the blue Peroxo complex. So we added some Sulfuric Acid to it. Upon addition the Chromate molecules condensed to the orange Dichromate. For some reason it turned darker and green Cr(III) formed again on the bottom. I am not sure why it reacted that way. Still it turned blue after Hydrogen Peroxide was added proofing that we indeed made some weak Chromate solution.
https://wn.com/Chromium_Chemistry_Chromate_From_Chromium(Iii)Oxide
In this video we tried to make some impure Chromate solution.
We mixed some Chromium(III)Oxide with Sodium Carbonate and some Potassium Nitrate and heated it using a burner till it became all brown-yellow. After it cooled down water was added and the yellow solution was separated from the green insoluble rests.
Next we tried to test it for the formation of the blue Peroxo complex. So we added some Sulfuric Acid to it. Upon addition the Chromate molecules condensed to the orange Dichromate. For some reason it turned darker and green Cr(III) formed again on the bottom. I am not sure why it reacted that way. Still it turned blue after Hydrogen Peroxide was added proofing that we indeed made some weak Chromate solution.
- published: 05 Sep 2016
- views: 1010
Chromium (III) Oxide and Ammonia "fireflys"
- Order: Reorder
- Duration: 0:12
- Updated: 27 Mar 2013
- views: 1010
- published: 27 Mar 2013
- views: 1010
Metal Complexes 8. Chromium (III) chemistry
- Order: Reorder
- Duration: 4:47
- Updated: 27 Oct 2014
- views: 2413
This video uses chromium (III) chloride solution to illustrate and explain 3 important chemical aspects of metal complexes: deprotonation, ligand substitution a...
This video uses chromium (III) chloride solution to illustrate and explain 3 important chemical aspects of metal complexes: deprotonation, ligand substitution and the acidic behaviour of 3+ cations. In deprotonation a base removes protons from water ligands bonded to the metal ion in solution. In ligand exchange one ligand is replaced by another (e.g. water ligands by ammonia ligands). When metal 3+ cations are mixed with a carbonate solution a metal carbonate precipitate is not formed. As such solutions are more acidic than those of 2+ cations, they decompose the carbonate ion to form water and carbon dioxide gas.
https://wn.com/Metal_Complexes_8._Chromium_(Iii)_Chemistry
This video uses chromium (III) chloride solution to illustrate and explain 3 important chemical aspects of metal complexes: deprotonation, ligand substitution and the acidic behaviour of 3+ cations. In deprotonation a base removes protons from water ligands bonded to the metal ion in solution. In ligand exchange one ligand is replaced by another (e.g. water ligands by ammonia ligands). When metal 3+ cations are mixed with a carbonate solution a metal carbonate precipitate is not formed. As such solutions are more acidic than those of 2+ cations, they decompose the carbonate ion to form water and carbon dioxide gas.
- published: 27 Oct 2014
- views: 2413
Make Thermite from Chromium Oxide
- Order: Reorder
- Duration: 6:00
- Updated: 14 Jan 2016
- views: 70040
Glassware generously provided by http://www.alchemylabsupply.com/
Use the discount code "copper" for a 5% discount.
Donate to NurdRage!
Through Patreon (prefer...
Glassware generously provided by http://www.alchemylabsupply.com/
Use the discount code "copper" for a 5% discount.
Donate to NurdRage!
Through Patreon (preferred): https://www.patreon.com/NurdRage
Through Bitcoin: 1NurdRAge7PNR4ULrbrpcYvc9RC4LDp9pS
In this video we make chromium based thermite.
JC founder of Gospik
Only HR
Scott Malcheski
advisable
Michael Zappe
Emil Mikulic
Dino Capiaghi
Wesley Gardner
LVE
Jack kelly
Meshal Al-Enazi
Lord Martin Hill
Matthew Brunette
Collin Wright
Simon Bitdiddle
Cullen Purkis
Samuel Pelzer
Carl Potter
Max Loutzenheiser
Mathieu Robillard
Phillip Hutchings
https://wn.com/Make_Thermite_From_Chromium_Oxide
Glassware generously provided by http://www.alchemylabsupply.com/
Use the discount code "copper" for a 5% discount.
Donate to NurdRage!
Through Patreon (preferred): https://www.patreon.com/NurdRage
Through Bitcoin: 1NurdRAge7PNR4ULrbrpcYvc9RC4LDp9pS
In this video we make chromium based thermite.
JC founder of Gospik
Only HR
Scott Malcheski
advisable
Michael Zappe
Emil Mikulic
Dino Capiaghi
Wesley Gardner
LVE
Jack kelly
Meshal Al-Enazi
Lord Martin Hill
Matthew Brunette
Collin Wright
Simon Bitdiddle
Cullen Purkis
Samuel Pelzer
Carl Potter
Max Loutzenheiser
Mathieu Robillard
Phillip Hutchings
- published: 14 Jan 2016
- views: 70040
Experiments with Chromium(VI)
- Order: Reorder
- Duration: 4:58
- Updated: 09 May 2015
- views: 4487
In this video the preparation of chromium(VI) from a chromium(III) salt is showed. And some of the properties of the hexavalent chromium are showed.
Patreon: h...
In this video the preparation of chromium(VI) from a chromium(III) salt is showed. And some of the properties of the hexavalent chromium are showed.
Patreon: https://www.patreon.com/randomexperimentsinternational
https://wn.com/Experiments_With_Chromium(Vi)
In this video the preparation of chromium(VI) from a chromium(III) salt is showed. And some of the properties of the hexavalent chromium are showed.
Patreon: https://www.patreon.com/randomexperimentsinternational
- published: 09 May 2015
- views: 4487
"Fire blizzard" [catalytic combustion of ammonia on chromium (III) oxide]
- Order: Reorder
- Duration: 1:22
- Updated: 22 May 2017
- views: 47
Огненная метель [каталитическое горение аммиака на оксиде хрома (III)]
Огненная метель [каталитическое горение аммиака на оксиде хрома (III)]
https://wn.com/Fire_Blizzard_Catalytic_Combustion_Of_Ammonia_On_Chromium_(Iii)_Oxide
Огненная метель [каталитическое горение аммиака на оксиде хрома (III)]
- published: 22 May 2017
- views: 47
Metal Complexes 6. Reduction of chromium (III) to Cr (II)
- Order: Reorder
- Duration: 1:09
- Updated: 27 Oct 2014
- views: 1578
This video demonstrates and explains the reduction of a green chromium (IIII) solution using granulated zinc and sulfuric acid. To explain the underlying chemis...
This video demonstrates and explains the reduction of a green chromium (IIII) solution using granulated zinc and sulfuric acid. To explain the underlying chemistry, half-cell reations and reduction potentials are employed.
https://wn.com/Metal_Complexes_6._Reduction_Of_Chromium_(Iii)_To_Cr_(Ii)
This video demonstrates and explains the reduction of a green chromium (IIII) solution using granulated zinc and sulfuric acid. To explain the underlying chemistry, half-cell reations and reduction potentials are employed.
- published: 27 Oct 2014
- views: 1578
Chemical Volcano and Fire Blizzard with Chromium Oxide!
- Order: Reorder
- Duration: 3:44
- Updated: 04 Dec 2014
- views: 849450
Facebook: https://www.facebook.com/thoisoi2
Patreon: https://www.patreon.com/Thoisoi?ty=h
Music: http://audiomicro.com
Interesting chemical experiments: http://...
Facebook: https://www.facebook.com/thoisoi2
Patreon: https://www.patreon.com/Thoisoi?ty=h
Music: http://audiomicro.com
Interesting chemical experiments: http://www.m.chemicum.com/
Hello everyone. Today we will conduct a reaction with chromium oxide 3. Chromium oxide will serve us as a catalyst. We will get the chromium oxide out of the reaction of the decomposition of ammonium dichromate.
Do not attempt to repeat following experiment by yourself!
For the reaction, we will take a metal cup and pour there a little, though nevermind, let's just empty the entire ammonium of dichromate.
Next, we ignite the substance using a burner and then observe the beautiful decay of the substance.
Well, the reaction has been completed now and we've got quite a lot of chromium oxide 3 as a result.
The first reaction with it is going to be the catalytic oxidation of ammonia using chromium oxide 3.
We will get ammonia gas from a Wurtz flask. To obtain it, we need a mixture of sodium hydroxide and ammonium nitrate.
Now pour the reagents into the flask. Since ammonia is lighter than air, it is best to collect it from the bottom of the vessel. To start the reaction, we’ll add some water to the mixture.
The reaction has started and now ammonia is entering the glass jar. After the jar is filled with ammonia, we need to heat up the chromium oxide 3.
Light up the burner, get a bit of chromium oxide 3 into a spoon and heat it up.
Now let’s add the retrieved red-hot chromium oxide into our jar.
What did just happen during this reaction, you could wonder. Ammonia in the jar has reacted with oxygen. The catalyst for the reaction was chromium oxide 3.
This reaction produces nitrogen oxide and water.
For the next reaction let’s take a metal cup and pour there a small amount of chromium oxide.
Place a piece of cotton wool soaked in ethyl alcohol onto the cup . Then, ignite the cotton. Now quickly sprinkle the cotton wool with chromium oxide.
During this reaction, chromium oxide catalyzes the oxidation of ethanol to acetaldehyde.
By the way, the smell of acetaldehyde is very much like a quick-drying super glue. Facebook: https://www.facebook.com/thoisoi2
Patreon: https://www.patreon.com/Thoisoi?ty=h
Music: http://audiomicro.com
https://wn.com/Chemical_Volcano_And_Fire_Blizzard_With_Chromium_Oxide
Facebook: https://www.facebook.com/thoisoi2
Patreon: https://www.patreon.com/Thoisoi?ty=h
Music: http://audiomicro.com
Interesting chemical experiments: http://www.m.chemicum.com/
Hello everyone. Today we will conduct a reaction with chromium oxide 3. Chromium oxide will serve us as a catalyst. We will get the chromium oxide out of the reaction of the decomposition of ammonium dichromate.
Do not attempt to repeat following experiment by yourself!
For the reaction, we will take a metal cup and pour there a little, though nevermind, let's just empty the entire ammonium of dichromate.
Next, we ignite the substance using a burner and then observe the beautiful decay of the substance.
Well, the reaction has been completed now and we've got quite a lot of chromium oxide 3 as a result.
The first reaction with it is going to be the catalytic oxidation of ammonia using chromium oxide 3.
We will get ammonia gas from a Wurtz flask. To obtain it, we need a mixture of sodium hydroxide and ammonium nitrate.
Now pour the reagents into the flask. Since ammonia is lighter than air, it is best to collect it from the bottom of the vessel. To start the reaction, we’ll add some water to the mixture.
The reaction has started and now ammonia is entering the glass jar. After the jar is filled with ammonia, we need to heat up the chromium oxide 3.
Light up the burner, get a bit of chromium oxide 3 into a spoon and heat it up.
Now let’s add the retrieved red-hot chromium oxide into our jar.
What did just happen during this reaction, you could wonder. Ammonia in the jar has reacted with oxygen. The catalyst for the reaction was chromium oxide 3.
This reaction produces nitrogen oxide and water.
For the next reaction let’s take a metal cup and pour there a small amount of chromium oxide.
Place a piece of cotton wool soaked in ethyl alcohol onto the cup . Then, ignite the cotton. Now quickly sprinkle the cotton wool with chromium oxide.
During this reaction, chromium oxide catalyzes the oxidation of ethanol to acetaldehyde.
By the way, the smell of acetaldehyde is very much like a quick-drying super glue. Facebook: https://www.facebook.com/thoisoi2
Patreon: https://www.patreon.com/Thoisoi?ty=h
Music: http://audiomicro.com
- published: 04 Dec 2014
- views: 849450
Chromium(III) oxide
- Order: Reorder
- Duration: 4:49
- Updated: 25 Aug 2016
- views: 248
Chromium oxide is the inorganic compound of the formula Cr
2O
3.It is one of the principal oxides of chromium and is used as a pigment.In nature, it occurs as t...
Chromium oxide is the inorganic compound of the formula Cr
2O
3.It is one of the principal oxides of chromium and is used as a pigment.In nature, it occurs as the rare mineral eskolaite.
---Image-Copyright-and-Permission---
About the author(s): Achim Hering
License: Creative Commons Attribution 3.0 (CC BY 3.0)
Author(s): Achim Hering (https://commons.wikimedia.org/wiki/User:Achim_Hering)
---Image-Copyright-and-Permission---
This channel is dedicated to make Wikipedia, one of the biggest knowledge databases in the world available to people with limited vision.
Article available under a Creative Commons license
Image source in video
https://wn.com/Chromium(Iii)_Oxide
Chromium oxide is the inorganic compound of the formula Cr
2O
3.It is one of the principal oxides of chromium and is used as a pigment.In nature, it occurs as the rare mineral eskolaite.
---Image-Copyright-and-Permission---
About the author(s): Achim Hering
License: Creative Commons Attribution 3.0 (CC BY 3.0)
Author(s): Achim Hering (https://commons.wikimedia.org/wiki/User:Achim_Hering)
---Image-Copyright-and-Permission---
This channel is dedicated to make Wikipedia, one of the biggest knowledge databases in the world available to people with limited vision.
Article available under a Creative Commons license
Image source in video
- published: 25 Aug 2016
- views: 248
Chromium III oxide crystalline structure
- Order: Reorder
- Duration: 0:40
- Updated: 21 Sep 2016
- views: 103
- published: 21 Sep 2016
- views: 103
TEST CHROMIUM III IONS
- Order: Reorder
- Duration: 10:57
- Updated: 20 Jul 2016
- views: 1886
Chromium Chemistry: [Cr(OH)6](3-) and Oxidation to Chromate
- Order: Reorder
- Duration: 2:42
- Updated: 19 Sep 2016
- views: 1006
In this video we will show another method to make Chromate(VI) from Chromium(III). Now this will only work if you manage to get Chromium(III) into solution. Som...
In this video we will show another method to make Chromate(VI) from Chromium(III). Now this will only work if you manage to get Chromium(III) into solution. Some say that the Oxide which is readily available and therefore a cheap and easily accessible source for Chromate will dissolve in strongly alkaline conditions. We never really managed to dissolve it so for Chromium Oxide it might be better to use the other method we showed in a previous video.
Now as Potassium Hydroxide is added to some Chromium(III)Chloride the solution turns dark blue-purple with the formation of Cr(OH)3 or better [Cr(OH)3(H2O)3]. As more Hydroxide is added the three remaining water ligands are exchanged by OH(-) forming the soluble [Cr(OH)6](3-).
Some of this green solution is then transfered to a test tube and Hydrogen Peroxide is added. The mixture is heated and the Peroxide reacts with the Cr(III) forming Cr(VI). To test it we simply added some Sulfuric Acid. Since Hydrogen Peroxide is already present it just needs to be acidified to form the blue CrO5 and indicate the presence of Cr(VI).
Additional information:
Let's take a look at this deprotonation step above. Now we started using CrCl3 in water. This is already hard to describe as Cr(III) is really famous for its isomerism. We will have a video on that as well. It changes color between green/blue and purple quite for many Cr(III) compounds. Although pure [Cr(H2O)6]Cl3 is purple and our solution was dark green which is probably [CrCl2(H2O)4]Cl we will treat it as [Cr(H2O)6](3+) for a moment to make things easier.
Now as one H2O is deprotonated [Cr(OH)(H2O)5](2+) forms. Two of them can form a dimer (much like Fe does)
[(H2O)4Cr-(OH)2-Cr(H2O)4](4+) which has two Cr(III) connected by two OH-bridging ligands. So it is not a (OH)2 group but two separate OH(-), I just wasn't sure how to write this here.
Bigger complexes form as more OH(-) is added like [Cr3(OH)4(H2O)9](5+) for example till Cr(OH)3 or [Cr(OH)3(H2O)3] has formed.
All these multinuclear compounds have the Cr(III) octahedrally coordinated by 6 Oxygen atoms. Now the distance of Cr to Cr is quite big and the Cr(III) repel each other. On one hand this kinda distorts the octahedron, on the other hand is this complex just a bridged one and no cluster compound (so no Cr-Cr bond)!
Cr(OH)3 is amphoteric, so it can react with acids to form [Cr(H2O)6](3+) again or with more base to form the [Cr(OH)6](3-).
https://wn.com/Chromium_Chemistry_Cr(Oh)6_(3_)_And_Oxidation_To_Chromate
In this video we will show another method to make Chromate(VI) from Chromium(III). Now this will only work if you manage to get Chromium(III) into solution. Some say that the Oxide which is readily available and therefore a cheap and easily accessible source for Chromate will dissolve in strongly alkaline conditions. We never really managed to dissolve it so for Chromium Oxide it might be better to use the other method we showed in a previous video.
Now as Potassium Hydroxide is added to some Chromium(III)Chloride the solution turns dark blue-purple with the formation of Cr(OH)3 or better [Cr(OH)3(H2O)3]. As more Hydroxide is added the three remaining water ligands are exchanged by OH(-) forming the soluble [Cr(OH)6](3-).
Some of this green solution is then transfered to a test tube and Hydrogen Peroxide is added. The mixture is heated and the Peroxide reacts with the Cr(III) forming Cr(VI). To test it we simply added some Sulfuric Acid. Since Hydrogen Peroxide is already present it just needs to be acidified to form the blue CrO5 and indicate the presence of Cr(VI).
Additional information:
Let's take a look at this deprotonation step above. Now we started using CrCl3 in water. This is already hard to describe as Cr(III) is really famous for its isomerism. We will have a video on that as well. It changes color between green/blue and purple quite for many Cr(III) compounds. Although pure [Cr(H2O)6]Cl3 is purple and our solution was dark green which is probably [CrCl2(H2O)4]Cl we will treat it as [Cr(H2O)6](3+) for a moment to make things easier.
Now as one H2O is deprotonated [Cr(OH)(H2O)5](2+) forms. Two of them can form a dimer (much like Fe does)
[(H2O)4Cr-(OH)2-Cr(H2O)4](4+) which has two Cr(III) connected by two OH-bridging ligands. So it is not a (OH)2 group but two separate OH(-), I just wasn't sure how to write this here.
Bigger complexes form as more OH(-) is added like [Cr3(OH)4(H2O)9](5+) for example till Cr(OH)3 or [Cr(OH)3(H2O)3] has formed.
All these multinuclear compounds have the Cr(III) octahedrally coordinated by 6 Oxygen atoms. Now the distance of Cr to Cr is quite big and the Cr(III) repel each other. On one hand this kinda distorts the octahedron, on the other hand is this complex just a bridged one and no cluster compound (so no Cr-Cr bond)!
Cr(OH)3 is amphoteric, so it can react with acids to form [Cr(H2O)6](3+) again or with more base to form the [Cr(OH)6](3-).
- published: 19 Sep 2016
- views: 1006
Thermite - Chromium(III) Oxide (Cr2O3) - 1
- Order: Reorder
- Duration: 1:01
- Updated: 12 Aug 2017
- views: 39
A 100 gram of Cr2O3 thermite reaction. The reaction proceeds very slowly, not unlike Titanium(IV) Oxide thermite. Afterward, small chunks of shiny Chromium meta...
A 100 gram of Cr2O3 thermite reaction. The reaction proceeds very slowly, not unlike Titanium(IV) Oxide thermite. Afterward, small chunks of shiny Chromium metal are found in the cooled remains.
http://www.amazingrust.com/Experiments/how_to/Thermite_pics-videos.html
https://wn.com/Thermite_Chromium(Iii)_Oxide_(Cr2O3)_1
Very exciting chemistry Ammonia + chromium III oxide = true
- Order: Reorder
- Duration: 0:15
- Updated: 16 Nov 2017
- views: 307
- published: 16 Nov 2017
- views: 307
Cool chemical volcano experiment - Ammonium Dichromate
- Order: Reorder
- Duration: 1:56
- Updated: 17 Jun 2014
- views: 105528
It's classic chemistry experiment.
In use orange substance - Ammonium Dichromate.
Ammonium dichromate decomposition (burning) reaction.
This reaction produce ...
It's classic chemistry experiment.
In use orange substance - Ammonium Dichromate.
Ammonium dichromate decomposition (burning) reaction.
This reaction produce steam, nitrogen gas and Chromium (III) oxide.
https://wn.com/Cool_Chemical_Volcano_Experiment_Ammonium_Dichromate
It's classic chemistry experiment.
In use orange substance - Ammonium Dichromate.
Ammonium dichromate decomposition (burning) reaction.
This reaction produce steam, nitrogen gas and Chromium (III) oxide.
- published: 17 Jun 2014
- views: 105528
how to make a basic chromium oxide pasted balsa strop
- Order: Reorder
- Duration: 7:54
- Updated: 04 Jan 2017
- views: 1399
budget DIY pasted strop that every straight razor and knife user should make.
SUBSCRIBE to my channel for more instructional videos
www.instagram.com/kmrazord...
budget DIY pasted strop that every straight razor and knife user should make.
SUBSCRIBE to my channel for more instructional videos
www.instagram.com/kmrazordesigns
www.facebook.com/kmrazordesigns
advice on using the strop. Use it like a strop NOT A HONE! heel leading and as little pressure as possible. my general preference is approximately 50 laps to adjust the edge to a chromium oxide finished edge, or 1-2 laps per shave to maintain an edge (for example 10 laps after every 10 shaves). I will post a demonstration video soon.
for those of you in the UK this is where i get my crox paste from: http://www.ebay.co.uk/itm/chromium-oxide-paste-for-razors-knives-or-metal-polishing-/132051905422?hash=item1ebee82b8e:g:dUkAAOSwQJhUbIvz
https://wn.com/How_To_Make_A_Basic_Chromium_Oxide_Pasted_Balsa_Strop
budget DIY pasted strop that every straight razor and knife user should make.
SUBSCRIBE to my channel for more instructional videos
www.instagram.com/kmrazordesigns
www.facebook.com/kmrazordesigns
advice on using the strop. Use it like a strop NOT A HONE! heel leading and as little pressure as possible. my general preference is approximately 50 laps to adjust the edge to a chromium oxide finished edge, or 1-2 laps per shave to maintain an edge (for example 10 laps after every 10 shaves). I will post a demonstration video soon.
for those of you in the UK this is where i get my crox paste from: http://www.ebay.co.uk/itm/chromium-oxide-paste-for-razors-knives-or-metal-polishing-/132051905422?hash=item1ebee82b8e:g:dUkAAOSwQJhUbIvz
- published: 04 Jan 2017
- views: 1399
HOW TO MAKE CHROMIUM HYDROXIDE/eventually reacting with CO2 to form chromium carbonate in the end
- Order: Reorder
- Duration: 14:48
- Updated: 08 Jan 2017
- views: 427
HOW TO MAKE CHROMIUM HYDROXIDE.............This is an easy but long experiment. The short version is take some chromium 3 salt...in this case chromium chlorid...
HOW TO MAKE CHROMIUM HYDROXIDE.............This is an easy but long experiment. The short version is take some chromium 3 salt...in this case chromium chloride.... and do a metathesis reaction with NaOH. This is done simple by dissolving the 2 salts in water and then mixing. CrOH will precipitate out. Then wash with water at least 7 times and removing at least 75% of the water after each wash. After washes you can filter but this will take at least a day or 2 with a vacuum pump and you will need to cycle the pump on every 5 to 15 minutes for about 3 minutes.....otherwise you will burn out your pump. If you use gravity filtration it will take months if not a year to filter a whole mole. This stuff plugs up filters quick. Anyways if you dont filter it you can just try to get as much water out as you can and then evaporate the rest of the water off and dry it with heat................thats it............keep in mind we started with 52 grams (1 mole) of metal chromium in a previous video and now we are one step away from making potassium dichromate................because it took so long to do the experiement the chromium hydroxide is mostly or all chromium carbonate because of all the CO2 in the water. No mater ....FOR MAKING DICHROMATE IT WILL NOT MATTER. Hydroxide or carbonate will do.
https://wn.com/How_To_Make_Chromium_Hydroxide_Eventually_Reacting_With_Co2_To_Form_Chromium_Carbonate_In_The_End
HOW TO MAKE CHROMIUM HYDROXIDE.............This is an easy but long experiment. The short version is take some chromium 3 salt...in this case chromium chloride.... and do a metathesis reaction with NaOH. This is done simple by dissolving the 2 salts in water and then mixing. CrOH will precipitate out. Then wash with water at least 7 times and removing at least 75% of the water after each wash. After washes you can filter but this will take at least a day or 2 with a vacuum pump and you will need to cycle the pump on every 5 to 15 minutes for about 3 minutes.....otherwise you will burn out your pump. If you use gravity filtration it will take months if not a year to filter a whole mole. This stuff plugs up filters quick. Anyways if you dont filter it you can just try to get as much water out as you can and then evaporate the rest of the water off and dry it with heat................thats it............keep in mind we started with 52 grams (1 mole) of metal chromium in a previous video and now we are one step away from making potassium dichromate................because it took so long to do the experiement the chromium hydroxide is mostly or all chromium carbonate because of all the CO2 in the water. No mater ....FOR MAKING DICHROMATE IT WILL NOT MATTER. Hydroxide or carbonate will do.
- published: 08 Jan 2017
- views: 427
"Fire blizzard" [catalytic combustion of ammonia on chromium (III) oxide] - 2
- Order: Reorder
- Duration: 1:17
- Updated: 22 May 2017
- views: 28
Огненная метель [каталитическое горение аммиака на оксиде хрома (III)]
http://chemistry-chemists.com/N1_2014/ChemistryAndChemists_1_2014-P2-1.html
Огненная метель [каталитическое горение аммиака на оксиде хрома (III)]
http://chemistry-chemists.com/N1_2014/ChemistryAndChemists_1_2014-P2-1.html
https://wn.com/Fire_Blizzard_Catalytic_Combustion_Of_Ammonia_On_Chromium_(Iii)_Oxide_2
3.07 Formula for chromium(III) oxide
- Order: Reorder
- Duration: 1:01
- Updated: 24 May 2016
- views: 441
- published: 24 May 2016
- views: 441
Chromium III oxide crystalline structure
- Order: Reorder
- Duration: 0:40
- Updated: 21 Sep 2016
- views: 65
- published: 21 Sep 2016
- views: 65
Chromium (III) Oxide and Ammonia "fireflys"
- Order: Reorder
- Duration: 0:12
- Updated: 27 Mar 2013
- views: 961
- published: 27 Mar 2013
- views: 961
Thermite
- Order: Reorder
- Duration: 1:39
- Updated: 12 May 2012
- views: 68
Cr2O3 to CrO3
- Order: Reorder
- Duration: 1:27
- Updated: 12 May 2012
- views: 833
-
Writing Ionic Formulas With Transition Metals & Polyatomic Ions - Introduction - Chemistry
This chemistry video tutorial provides an introduction to writing the formula of an ionic compound that contains transition metals with roman numerals and polyatomic ions. This video contains plenty of examples and practice problems that you can help you with your next worksheet assignment. Here is a list of topics: 1. Writing Formulas For Ionic Compounds - Same Charged Ions 2. Monoatomic vs Polyatomic Ions List 3. Charges of Common Monoatomic Ions Based On Group Number In the Periodic Table of Elements 4. Transition Metals and Roman Numeral System List of Examples and Chemical Formulas: Sodium Chloride, Calcium Sulfide, Aluminum Nitride, Lithium Oxide, Gallium Bromide, Magnesium Phosphite, Potassium Sulfate, Strontium Phosphate, Barium Nitrate, Iron (II) Sulfide, Copper (II) Nitrit...
published: 16 Aug 2016 -
Exotic Thermite Series Ep. 1: Iron, Chromium, Stainless Steel
(Intro clips from Cody'sLab, NurdRage, and NileRed [obviously]) Hey everyone! Hope you enjoy this video! This feels so great to finally get out online after 8 months of filming/editing (not all that time was spent working on this, obviously :) )... Next up is Nickel, Cobalt, Manganese, and Tin! Maybe some alloys as well like Ferromanganese and NiChrome. After that I plan on having a "boosted and high temperature" third episode, but I'll leave it at that for now ;) First off special thanks to Cognitive Thought for being the initial spark that lead to the creation of this series. I wouldn't be doing this without you, man, and its been a lot of fun so far. It only gets more fun from here! Second, if anyone has any constructive criticisms for me on this video or corrections that would be m...
published: 28 Aug 2017 -
AQA A2 Chemistry - Chromium Chemistry
This video runs through chromium and the various ions and complexes that it forms.
published: 01 Jun 2015 -
Israel Wachs: Water gas shift reaction over Cr2O3/Fe2O3
published: 11 Mar 2017 -
Monaural - Chromium - Cr - 384HZ
Name: Chromium Symbol: Cr Atomic Number: 24 Atomic Mass: 51.9961 amu Melting Point: 1857.0 °C (2130.15 K, 3374.6 °F) Boiling Point: 2672.0 °C (2945.15 K, 4841.6 °F) Number of Protons/Electrons: 24 Number of Neutrons: 28 Classification: Transition Metal Crystal Structure: Cubic Density @ 293 K: 7.19 g/cm3 Number of Energy Levels: 4 First Energy Level: 2 Second Energy Level: 8 Third Energy Level: 13 Fourth Energy Level: 1 Isotope Half Life Cr-49 42.3 minutes Cr-50 Stable Cr-51 27.7 days Cr-52 Stable Cr-53 Stable Cr-54 Stable Date of Discovery: 1797 Discoverer: Louis Vauquelin Name Origin: From the Greek word chrôma (color) Uses: Stainless steel Obtained From: Chromite From (http://www.chemicalelements.com/elements/cr.html) http://www.anthonysommer.ca Subscribe to my new YouTube ch...
published: 30 Apr 2016 -
S. C. York: CO2 as probe of Cr2O3 surface- 1997 spring tristates
published: 01 Mar 2016 -
Markus Aichhorn - Hunds coupling and magnetism in technetium and chromium oxides
PROGRAM: STRONGLY CORRELATED SYSTEMS: FROM MODELS TO MATERIALS DATES: Monday 06 Jan, 2014 - Friday 17 Jan, 2014 VENUE: Department of Physics, IISc Campus, Bangalore PROGRAM LINK : http://www.icts.res.in/program/MTM2014 The realistic description of materials with strong electron-electron interactions is one of the challenges of modern condensed matter physics. Such a realistic description on one hand requires non-perturbative many body approaches, and on the other hand requires model Hamiltonian with material specific details offered by density functional theory (DFT). Mastering these novel techniques requires a wide background, ranging from DFT to model building and non-perturbative many body approaches such as Quantum Monte Carlo. During the last few years a major breakthrough came wi...
published: 14 Feb 2014 -
Metal Complexes 3. Underlying chemical principles
This video compares deprotonation and ligand substitution. On the way, it considers how hydrolysis in aqueous solution leads to a drop in pH. It concludes by looking at the spectrochemical series, stability constants and entropy changes.
published: 01 Oct 2014 -
Chromium
Chromium is a chemical element which has the symbol Cr and atomic number 24. It is the first element in Group 6. It is a steely-gray, lustrous, hard and brittle metal which takes a high polish, resists tarnishing, and has a high melting point. The name of the element is derived from the Greek word χρῶμα, chrōma, meaning colour, because many of its compounds are intensely coloured. Chromium oxide was used by the Chinese in the Qin dynasty over 2,000 years ago to coat metal weapons found with the Terracotta Army. Chromium was discovered as an element after it came to the attention of the western world in the red crystalline mineral crocoite (lead(II) chromate), discovered in 1761 and initially used as a pigment. Louis Nicolas Vauquelin first isolated chromium metal from this mineral in 1797....
published: 24 Jul 2014 -
Chromium 6 workshop
Steve Bigely, Coachella Valley Water District Director of Environmental Services, explains why chromium-6 is found in the ground water of the Coachella Valley. The California Department of Public Health recently released the nation's first draft Maximum Contaminant Level (MCL) for chromium-6 in drinking water. Chromium-6 occurs naturally in Coachella Valley groundwater. If the state's proposed limit is adopted, approximately half the drinking water CVWD delivers is expected to be above this new standard. The cost to design, construct and maintain new treatment facilities to meet the standard could raise water rates by as much as $50 per month, according to preliminary estimates.
published: 11 Oct 2013 -
how to find oxidation number with periodic table
Introduction to Oxidation state. Why compounds have different oxidation states ? Oxidation state of elements. Trend of Oxidation state in periodic table. Shafiq BFINE lectures. BFINE academy lectures. oxidation state of s block elements and their trend in urdu oxidation state of p block elements and their trend in urdu
published: 17 Aug 2017 -
Everything Matters | Aluminum | Ron Hipschman | Exploratorium
Versatile aluminum, once worth nearly twice its weight in gold, has since become the quintessential metal of our modern lives. While successfully isolated by Hans Christian Ørsted in 1825 and Friedrich Wöhler in 1827, metallic aluminum remained hard to obtain until the end of the nineteenth century, when a new smelting process made it inexpensive to produce. Find out more about aluminum from Exploratorium scientist, Ron Hipschman.
published: 03 May 2016 -
How to Chrome Aluminium - AMAN CHEMICALS INDIA
Alcrome-Al is a chrome agent for Aluminium metals and its alloys . It gives a very thin film of chrome which protect the aluminium from the further reaction with the elements present in the atmosphere .
published: 24 Jun 2012 -
Chromium
Chromium is a chemical element with symbol Cr and atomic number 24.It is the first element in Group 6.It is a steely-grey, lustrous, hard and brittle metal which takes a high polish, resists tarnishing, and has a high melting point.The name of the element is derived from the Greek word χρῶμα, chrōma, meaning color, because many of the compounds are intensely colored. ---Image-Copyright-and-Permission--- About the author(s): Alchemist-hp (talk) (www.pse-mendelejew.de) License: Free Art License (FAL) Author(s): Alchemist-hp (https://commons.wikimedia.org/wiki/User:Alchemist-hp) talk (https://commons.wikimedia.org/wiki/User_talk:Alchemist-hp) ---Image-Copyright-and-Permission--- This channel is dedicated to make Wikipedia, one of the biggest knowledge databases in the world available to peo...
published: 04 Sep 2016 -
Cobalt
Cobalt is a chemical element with symbol Co and atomic number 27. Like nickel, cobalt in the Earth's crust is found only in chemically combined form, save for small deposits found in alloys of natural meteoric iron. The free element, produced by reductive smelting, is a hard, lustrous, silver-gray metal. Cobalt-based blue pigments (cobalt blue) have been used since ancient times for jewelry and paints, and to impart a distinctive blue tint to glass, but the color was later thought by alchemists to be due to the known metal bismuth. Miners had long used the name kobold ore (German for goblin ore) for some of the blue-pigment producing minerals; they were so named because they were poor in known metals, and gave poisonous arsenic-containing fumes upon smelting. In 1735, such ores were found ...
published: 30 Jul 2014 -
Mod-02 Lec-02 Metal carbonyl complexes
Introduction to Organometallic Chemistry by Prof. A.G. Samuelson,Department of Chemistry and Biochemistry,IISc Bangalore.For more details on NPTEL visit http://nptel.ac.in
published: 14 Oct 2014 -
Hexavalent Chromium Treatment with Strong Base Anion
11/13/2014 Water Research Foundation Webcast. On July 1, 2014, the nation’s first MCL specifically for hexavalent chromium [Cr(VI)] was adopted by the California State Water Resources Control Board Division of Drinking Water, formerly Department of Public Health. In anticipation of and preparation for compliance with the MCL, the Soquel Creek Water District (District) led the WRF Tailored Collaboration project #4488, Hexavalent Chromium Treatment with Strong Base Anion Exchange (SBA-IX), for which this Webcast is based on. This project conducted an in-depth investigation of SBA-IX for Cr(VI) removal and residual brine management alternatives. While SBA-IX is a well-established drinking water technology for many contaminants, prior to the TC project, limited research had investigated SB...
published: 10 Dec 2015 -
Pollution Info Session #6: Hexavalent Chromium Remediation
Presented by Mr. Sachin Sharma The presentation focuses on various remediation alternatives (In-Situ and Ex-Situ methods) available today to reduce hexavalent chromium [Cr (VI)] in soil and groundwater and also includes a brief summary of general health risks from Cr (VI). The implementability, effectiveness, and practical challenges associated with each remediation alternative will be discussed to provide a range of solutions that can be used at a given Cr (VI) impacted site. A case study will also be discussed to show the reduction in pre and post pilot study Cr (VI) levels. Cost effective methods to reduce Cr (VI) concentrations will also be discussed in the presentation. Mr. Sachin Sharma, P.E. is a certified professional engineer with 13 years of extensive experience in environmenta...
published: 19 Apr 2017 -
Metal Complexes 4. Underlying redox principles
This video begins by outlining the electrochemistry needed to understand the redox chemistry associated with metal complexes. It then looks at examples of coupling half equations when there are more than just two present in the system. The chemistry of Iron, titanium, vanadium, chromium and copper are used by way of examples. Disproportionation of copper (I) ions in sulfuric acid is considered at the end.
published: 12 Oct 2014 -
Thinking critically about sustainable energy: Our fossil fuel future - Bassam Dally
Bassam Dally of the University of Adelaide talks about low emission combustion technology
published: 19 Apr 2011
developed with YouTube
Writing Ionic Formulas With Transition Metals & Polyatomic Ions - Introduction - Chemistry
- Order: Reorder
- Duration: 20:02
- Updated: 16 Aug 2016
- views: 25197
This chemistry video tutorial provides an introduction to writing the formula of an ionic compound that contains transition metals with roman numerals and polya...
This chemistry video tutorial provides an introduction to writing the formula of an ionic compound that contains transition metals with roman numerals and polyatomic ions. This video contains plenty of examples and practice problems that you can help you with your next worksheet assignment.
Here is a list of topics:
1. Writing Formulas For Ionic Compounds - Same Charged Ions
2. Monoatomic vs Polyatomic Ions List
3. Charges of Common Monoatomic Ions Based On Group Number In the Periodic Table of Elements
4. Transition Metals and Roman Numeral System
List of Examples and Chemical Formulas:
Sodium Chloride, Calcium Sulfide, Aluminum Nitride, Lithium Oxide, Gallium Bromide, Magnesium Phosphite, Potassium Sulfate, Strontium Phosphate, Barium Nitrate, Iron (II) Sulfide, Copper (II) Nitrite, Copper (I) Phosphite, Vanadium (V) Dichromate, and Leav (IV) Oxide.
https://wn.com/Writing_Ionic_Formulas_With_Transition_Metals_Polyatomic_Ions_Introduction_Chemistry
This chemistry video tutorial provides an introduction to writing the formula of an ionic compound that contains transition metals with roman numerals and polyatomic ions. This video contains plenty of examples and practice problems that you can help you with your next worksheet assignment.
Here is a list of topics:
1. Writing Formulas For Ionic Compounds - Same Charged Ions
2. Monoatomic vs Polyatomic Ions List
3. Charges of Common Monoatomic Ions Based On Group Number In the Periodic Table of Elements
4. Transition Metals and Roman Numeral System
List of Examples and Chemical Formulas:
Sodium Chloride, Calcium Sulfide, Aluminum Nitride, Lithium Oxide, Gallium Bromide, Magnesium Phosphite, Potassium Sulfate, Strontium Phosphate, Barium Nitrate, Iron (II) Sulfide, Copper (II) Nitrite, Copper (I) Phosphite, Vanadium (V) Dichromate, and Leav (IV) Oxide.
- published: 16 Aug 2016
- views: 25197
Exotic Thermite Series Ep. 1: Iron, Chromium, Stainless Steel
- Order: Reorder
- Duration: 24:57
- Updated: 28 Aug 2017
- views: 405
(Intro clips from Cody'sLab, NurdRage, and NileRed [obviously])
Hey everyone! Hope you enjoy this video! This feels so great to finally get out online after 8 ...
(Intro clips from Cody'sLab, NurdRage, and NileRed [obviously])
Hey everyone! Hope you enjoy this video! This feels so great to finally get out online after 8 months of filming/editing (not all that time was spent working on this, obviously :) )...
Next up is Nickel, Cobalt, Manganese, and Tin! Maybe some alloys as well like Ferromanganese and NiChrome. After that I plan on having a "boosted and high temperature" third episode, but I'll leave it at that for now ;)
First off special thanks to Cognitive Thought for being the initial spark that lead to the creation of this series. I wouldn't be doing this without you, man, and its been a lot of fun so far. It only gets more fun from here!
Second, if anyone has any constructive criticisms for me on this video or corrections that would be much appreciated! It's been almost ten years since I've done any filming, scripting, and editing like this so let's just say the next episode will hopefully be smoother.
If anyone has any questions by all means feel free to ask! Please oh please don't try this at home. This stuff can go wrong oh so quickly and the worst kind of problem is one that's preheated to 4000 degrees Fahrenheit.
https://wn.com/Exotic_Thermite_Series_Ep._1_Iron,_Chromium,_Stainless_Steel
(Intro clips from Cody'sLab, NurdRage, and NileRed [obviously])
Hey everyone! Hope you enjoy this video! This feels so great to finally get out online after 8 months of filming/editing (not all that time was spent working on this, obviously :) )...
Next up is Nickel, Cobalt, Manganese, and Tin! Maybe some alloys as well like Ferromanganese and NiChrome. After that I plan on having a "boosted and high temperature" third episode, but I'll leave it at that for now ;)
First off special thanks to Cognitive Thought for being the initial spark that lead to the creation of this series. I wouldn't be doing this without you, man, and its been a lot of fun so far. It only gets more fun from here!
Second, if anyone has any constructive criticisms for me on this video or corrections that would be much appreciated! It's been almost ten years since I've done any filming, scripting, and editing like this so let's just say the next episode will hopefully be smoother.
If anyone has any questions by all means feel free to ask! Please oh please don't try this at home. This stuff can go wrong oh so quickly and the worst kind of problem is one that's preheated to 4000 degrees Fahrenheit.
- published: 28 Aug 2017
- views: 405
AQA A2 Chemistry - Chromium Chemistry
- Order: Reorder
- Duration: 38:30
- Updated: 01 Jun 2015
- views: 17412
This video runs through chromium and the various ions and complexes that it forms.
This video runs through chromium and the various ions and complexes that it forms.
https://wn.com/Aqa_A2_Chemistry_Chromium_Chemistry
This video runs through chromium and the various ions and complexes that it forms.
- published: 01 Jun 2015
- views: 17412
Israel Wachs: Water gas shift reaction over Cr2O3/Fe2O3
- Order: Reorder
- Duration: 27:44
- Updated: 11 Mar 2017
- views: 22
- published: 11 Mar 2017
- views: 22
Monaural - Chromium - Cr - 384HZ
- Order: Reorder
- Duration: 30:01
- Updated: 30 Apr 2016
- views: 440
Name: Chromium
Symbol: Cr
Atomic Number: 24
Atomic Mass: 51.9961 amu
Melting Point: 1857.0 °C (2130.15 K, 3374.6 °F)
Boiling Point: 2672.0 °C (2945.15 K, 4841.6...
Name: Chromium
Symbol: Cr
Atomic Number: 24
Atomic Mass: 51.9961 amu
Melting Point: 1857.0 °C (2130.15 K, 3374.6 °F)
Boiling Point: 2672.0 °C (2945.15 K, 4841.6 °F)
Number of Protons/Electrons: 24
Number of Neutrons: 28
Classification: Transition Metal
Crystal Structure: Cubic
Density @ 293 K: 7.19 g/cm3
Number of Energy Levels: 4
First Energy Level: 2
Second Energy Level: 8
Third Energy Level: 13
Fourth Energy Level: 1
Isotope Half Life
Cr-49 42.3 minutes
Cr-50 Stable
Cr-51 27.7 days
Cr-52 Stable
Cr-53 Stable
Cr-54 Stable
Date of Discovery: 1797
Discoverer: Louis Vauquelin
Name Origin: From the Greek word chrôma (color)
Uses: Stainless steel
Obtained From: Chromite
From
(http://www.chemicalelements.com/elements/cr.html)
http://www.anthonysommer.ca
Subscribe to my new YouTube channel which will be used as an avenue towards sharing my accumulated occult knowledge without censorship or corruption:
https://www.youtube.com/channel/UCCG54ccJuTKZs5Ha-IYBJFg?sub_confirmation=1
Please read my FAQ: "http://www.anthonysommer.ca/faq.html"
https://wn.com/Monaural_Chromium_Cr_384Hz
Name: Chromium
Symbol: Cr
Atomic Number: 24
Atomic Mass: 51.9961 amu
Melting Point: 1857.0 °C (2130.15 K, 3374.6 °F)
Boiling Point: 2672.0 °C (2945.15 K, 4841.6 °F)
Number of Protons/Electrons: 24
Number of Neutrons: 28
Classification: Transition Metal
Crystal Structure: Cubic
Density @ 293 K: 7.19 g/cm3
Number of Energy Levels: 4
First Energy Level: 2
Second Energy Level: 8
Third Energy Level: 13
Fourth Energy Level: 1
Isotope Half Life
Cr-49 42.3 minutes
Cr-50 Stable
Cr-51 27.7 days
Cr-52 Stable
Cr-53 Stable
Cr-54 Stable
Date of Discovery: 1797
Discoverer: Louis Vauquelin
Name Origin: From the Greek word chrôma (color)
Uses: Stainless steel
Obtained From: Chromite
From
(http://www.chemicalelements.com/elements/cr.html)
http://www.anthonysommer.ca
Subscribe to my new YouTube channel which will be used as an avenue towards sharing my accumulated occult knowledge without censorship or corruption:
https://www.youtube.com/channel/UCCG54ccJuTKZs5Ha-IYBJFg?sub_confirmation=1
Please read my FAQ: "http://www.anthonysommer.ca/faq.html"
- published: 30 Apr 2016
- views: 440
S. C. York: CO2 as probe of Cr2O3 surface- 1997 spring tristates
- Order: Reorder
- Duration: 24:57
- Updated: 01 Mar 2016
- views: 1
- published: 01 Mar 2016
- views: 1
Markus Aichhorn - Hunds coupling and magnetism in technetium and chromium oxides
- Order: Reorder
- Duration: 35:36
- Updated: 14 Feb 2014
- views: 129
PROGRAM: STRONGLY CORRELATED SYSTEMS: FROM MODELS TO MATERIALS
DATES: Monday 06 Jan, 2014 - Friday 17 Jan, 2014
VENUE: Department of Physics, IISc Campus, Ban...
PROGRAM: STRONGLY CORRELATED SYSTEMS: FROM MODELS TO MATERIALS
DATES: Monday 06 Jan, 2014 - Friday 17 Jan, 2014
VENUE: Department of Physics, IISc Campus, Bangalore
PROGRAM LINK : http://www.icts.res.in/program/MTM2014
The realistic description of materials with strong electron-electron interactions is one of the challenges of modern condensed matter physics. Such a realistic description on one hand requires non-perturbative many body approaches, and on the other hand requires model Hamiltonian with material specific details offered by density functional theory (DFT). Mastering these novel techniques requires a wide background, ranging from DFT to model building and non-perturbative many body approaches such as Quantum Monte Carlo. During the last few years a major breakthrough came with the development of the DFT+Dynamical Mean Field Theory (DFT+DMFT) method. In this approach, conventional ab-initio schemes based on DFT are combined with a modern many-body approach, the dynamical mean-field theory (DMFT). In the DMFT method the full many body problem of solid state physics is mapped onto a quantum impurity model related by a self-consistency condition and the resulting impurity model is solved using non-perturbative many body techniques.
The present program has this circle of ideas as its focus. It is built around three Chandrasekhar lectures to be delivered by Prof A. Georges. In addition to these lectures there will be a school, divided into two parts, and a discussion meeting, scheduled between the two parts of the school, in which recent theoretical and experimental results on strongly correlated materials will be discussed by leading experts from India and abroad.
The school will be devoted to the following topics.
School Part I : Jan 6 -- Jan 9, 2014
a) Basic Density Functional Theory (DFT) and basis sets
b) Wannier functions
c) An introduction to many-body methods and Quantum Monte Carlo
d) Constrained LDA/RPA and Estimation of U and J
School Part II : Jan 14 -- Jan 17, 2014
a) Dynamical Mean Field Theory (DMFT)
b) Impurity Solvers
c) GW+DMFT
d) DFT+DMFT
The program is designed to educate advanced graduate students and young post-doctoral fellows in this emerging field of strongly correlated systems and to train them to carry out numerical calculations.
https://wn.com/Markus_Aichhorn_Hunds_Coupling_And_Magnetism_In_Technetium_And_Chromium_Oxides
PROGRAM: STRONGLY CORRELATED SYSTEMS: FROM MODELS TO MATERIALS
DATES: Monday 06 Jan, 2014 - Friday 17 Jan, 2014
VENUE: Department of Physics, IISc Campus, Bangalore
PROGRAM LINK : http://www.icts.res.in/program/MTM2014
The realistic description of materials with strong electron-electron interactions is one of the challenges of modern condensed matter physics. Such a realistic description on one hand requires non-perturbative many body approaches, and on the other hand requires model Hamiltonian with material specific details offered by density functional theory (DFT). Mastering these novel techniques requires a wide background, ranging from DFT to model building and non-perturbative many body approaches such as Quantum Monte Carlo. During the last few years a major breakthrough came with the development of the DFT+Dynamical Mean Field Theory (DFT+DMFT) method. In this approach, conventional ab-initio schemes based on DFT are combined with a modern many-body approach, the dynamical mean-field theory (DMFT). In the DMFT method the full many body problem of solid state physics is mapped onto a quantum impurity model related by a self-consistency condition and the resulting impurity model is solved using non-perturbative many body techniques.
The present program has this circle of ideas as its focus. It is built around three Chandrasekhar lectures to be delivered by Prof A. Georges. In addition to these lectures there will be a school, divided into two parts, and a discussion meeting, scheduled between the two parts of the school, in which recent theoretical and experimental results on strongly correlated materials will be discussed by leading experts from India and abroad.
The school will be devoted to the following topics.
School Part I : Jan 6 -- Jan 9, 2014
a) Basic Density Functional Theory (DFT) and basis sets
b) Wannier functions
c) An introduction to many-body methods and Quantum Monte Carlo
d) Constrained LDA/RPA and Estimation of U and J
School Part II : Jan 14 -- Jan 17, 2014
a) Dynamical Mean Field Theory (DMFT)
b) Impurity Solvers
c) GW+DMFT
d) DFT+DMFT
The program is designed to educate advanced graduate students and young post-doctoral fellows in this emerging field of strongly correlated systems and to train them to carry out numerical calculations.
- published: 14 Feb 2014
- views: 129
Metal Complexes 3. Underlying chemical principles
- Order: Reorder
- Duration: 31:55
- Updated: 01 Oct 2014
- views: 884
This video compares deprotonation and ligand substitution. On the way, it considers how hydrolysis in aqueous solution leads to a drop in pH. It concludes by lo...
This video compares deprotonation and ligand substitution. On the way, it considers how hydrolysis in aqueous solution leads to a drop in pH. It concludes by looking at the spectrochemical series, stability constants and entropy changes.
https://wn.com/Metal_Complexes_3._Underlying_Chemical_Principles
This video compares deprotonation and ligand substitution. On the way, it considers how hydrolysis in aqueous solution leads to a drop in pH. It concludes by looking at the spectrochemical series, stability constants and entropy changes.
- published: 01 Oct 2014
- views: 884
Chromium
- Order: Reorder
- Duration: 35:53
- Updated: 24 Jul 2014
- views: 3352
Chromium is a chemical element which has the symbol Cr and atomic number 24. It is the first element in Group 6. It is a steely-gray, lustrous, hard and brittle...
Chromium is a chemical element which has the symbol Cr and atomic number 24. It is the first element in Group 6. It is a steely-gray, lustrous, hard and brittle metal which takes a high polish, resists tarnishing, and has a high melting point. The name of the element is derived from the Greek word χρῶμα, chrōma, meaning colour, because many of its compounds are intensely coloured.
Chromium oxide was used by the Chinese in the Qin dynasty over 2,000 years ago to coat metal weapons found with the Terracotta Army. Chromium was discovered as an element after it came to the attention of the western world in the red crystalline mineral crocoite (lead(II) chromate), discovered in 1761 and initially used as a pigment. Louis Nicolas Vauquelin first isolated chromium metal from this mineral in 1797. Since Vauquelin's first production of metallic chromium, small amounts of native (free) chromium metal have been discovered in rare minerals, but these are not used commercially. Instead, nearly all chromium is commercially extracted from the single commercially viable ore chromite, which is iron chromium oxide (FeCr2O4). Chromite is also now the chief source of chromium for chromium pigments.
This video is targeted to blind users.
Attribution:
Article text available under CC-BY-SA
Creative Commons image source in video
https://wn.com/Chromium
Chromium is a chemical element which has the symbol Cr and atomic number 24. It is the first element in Group 6. It is a steely-gray, lustrous, hard and brittle metal which takes a high polish, resists tarnishing, and has a high melting point. The name of the element is derived from the Greek word χρῶμα, chrōma, meaning colour, because many of its compounds are intensely coloured.
Chromium oxide was used by the Chinese in the Qin dynasty over 2,000 years ago to coat metal weapons found with the Terracotta Army. Chromium was discovered as an element after it came to the attention of the western world in the red crystalline mineral crocoite (lead(II) chromate), discovered in 1761 and initially used as a pigment. Louis Nicolas Vauquelin first isolated chromium metal from this mineral in 1797. Since Vauquelin's first production of metallic chromium, small amounts of native (free) chromium metal have been discovered in rare minerals, but these are not used commercially. Instead, nearly all chromium is commercially extracted from the single commercially viable ore chromite, which is iron chromium oxide (FeCr2O4). Chromite is also now the chief source of chromium for chromium pigments.
This video is targeted to blind users.
Attribution:
Article text available under CC-BY-SA
Creative Commons image source in video
- published: 24 Jul 2014
- views: 3352
Chromium 6 workshop
- Order: Reorder
- Duration: 37:48
- Updated: 11 Oct 2013
- views: 300
Steve Bigely, Coachella Valley Water District Director of Environmental Services, explains why chromium-6 is found in the ground water of the Coachella Valley....
Steve Bigely, Coachella Valley Water District Director of Environmental Services, explains why chromium-6 is found in the ground water of the Coachella Valley. The California Department of Public Health recently released the nation's first draft Maximum Contaminant Level (MCL) for chromium-6 in drinking water. Chromium-6 occurs naturally in Coachella Valley groundwater. If the state's proposed limit is adopted, approximately half the drinking water CVWD delivers is expected to be above this new standard. The cost to design, construct and maintain new treatment facilities to meet the standard could raise water rates by as much as $50 per month, according to preliminary estimates.
https://wn.com/Chromium_6_Workshop
Steve Bigely, Coachella Valley Water District Director of Environmental Services, explains why chromium-6 is found in the ground water of the Coachella Valley. The California Department of Public Health recently released the nation's first draft Maximum Contaminant Level (MCL) for chromium-6 in drinking water. Chromium-6 occurs naturally in Coachella Valley groundwater. If the state's proposed limit is adopted, approximately half the drinking water CVWD delivers is expected to be above this new standard. The cost to design, construct and maintain new treatment facilities to meet the standard could raise water rates by as much as $50 per month, according to preliminary estimates.
- published: 11 Oct 2013
- views: 300
how to find oxidation number with periodic table
- Order: Reorder
- Duration: 21:01
- Updated: 17 Aug 2017
- views: 125
Introduction to Oxidation state. Why compounds have different oxidation states ? Oxidation state of elements. Trend of Oxidation state in periodic table. Shafiq...
Introduction to Oxidation state. Why compounds have different oxidation states ? Oxidation state of elements. Trend of Oxidation state in periodic table. Shafiq BFINE lectures. BFINE academy lectures.
oxidation state of s block elements and their trend in urdu
oxidation state of p block elements and their trend in urdu
https://wn.com/How_To_Find_Oxidation_Number_With_Periodic_Table
Introduction to Oxidation state. Why compounds have different oxidation states ? Oxidation state of elements. Trend of Oxidation state in periodic table. Shafiq BFINE lectures. BFINE academy lectures.
oxidation state of s block elements and their trend in urdu
oxidation state of p block elements and their trend in urdu
- published: 17 Aug 2017
- views: 125
Everything Matters | Aluminum | Ron Hipschman | Exploratorium
- Order: Reorder
- Duration: 32:44
- Updated: 03 May 2016
- views: 371
Versatile aluminum, once worth nearly twice its weight in gold, has since become the quintessential metal of our modern lives. While successfully isolated by Ha...
Versatile aluminum, once worth nearly twice its weight in gold, has since become the quintessential metal of our modern lives. While successfully isolated by Hans Christian Ørsted in 1825 and Friedrich Wöhler in 1827, metallic aluminum remained hard to obtain until the end of the nineteenth century, when a new smelting process made it inexpensive to produce. Find out more about aluminum from Exploratorium scientist, Ron Hipschman.
https://wn.com/Everything_Matters_|_Aluminum_|_Ron_Hipschman_|_Exploratorium
Versatile aluminum, once worth nearly twice its weight in gold, has since become the quintessential metal of our modern lives. While successfully isolated by Hans Christian Ørsted in 1825 and Friedrich Wöhler in 1827, metallic aluminum remained hard to obtain until the end of the nineteenth century, when a new smelting process made it inexpensive to produce. Find out more about aluminum from Exploratorium scientist, Ron Hipschman.
- published: 03 May 2016
- views: 371
How to Chrome Aluminium - AMAN CHEMICALS INDIA
- Order: Reorder
- Duration: 25:34
- Updated: 24 Jun 2012
- views: 7273
Alcrome-Al is a chrome agent for Aluminium metals and its alloys . It gives a very thin film of chrome which protect the aluminium from the further reaction wit...
Alcrome-Al is a chrome agent for Aluminium metals and its alloys . It gives a very thin film of chrome which protect the aluminium from the further reaction with the elements present in the atmosphere .
https://wn.com/How_To_Chrome_Aluminium_Aman_Chemicals_India
Alcrome-Al is a chrome agent for Aluminium metals and its alloys . It gives a very thin film of chrome which protect the aluminium from the further reaction with the elements present in the atmosphere .
- published: 24 Jun 2012
- views: 7273
Chromium
- Order: Reorder
- Duration: 30:26
- Updated: 04 Sep 2016
- views: 25
Chromium is a chemical element with symbol Cr and atomic number 24.It is the first element in Group 6.It is a steely-grey, lustrous, hard and brittle metal whic...
Chromium is a chemical element with symbol Cr and atomic number 24.It is the first element in Group 6.It is a steely-grey, lustrous, hard and brittle metal which takes a high polish, resists tarnishing, and has a high melting point.The name of the element is derived from the Greek word χρῶμα, chrōma, meaning color, because many of the compounds are intensely colored.
---Image-Copyright-and-Permission---
About the author(s): Alchemist-hp (talk) (www.pse-mendelejew.de)
License: Free Art License (FAL)
Author(s): Alchemist-hp (https://commons.wikimedia.org/wiki/User:Alchemist-hp)
talk (https://commons.wikimedia.org/wiki/User_talk:Alchemist-hp)
---Image-Copyright-and-Permission---
This channel is dedicated to make Wikipedia, one of the biggest knowledge databases in the world available to people with limited vision.
Article available under a Creative Commons license
Image source in video
https://wn.com/Chromium
Chromium is a chemical element with symbol Cr and atomic number 24.It is the first element in Group 6.It is a steely-grey, lustrous, hard and brittle metal which takes a high polish, resists tarnishing, and has a high melting point.The name of the element is derived from the Greek word χρῶμα, chrōma, meaning color, because many of the compounds are intensely colored.
---Image-Copyright-and-Permission---
About the author(s): Alchemist-hp (talk) (www.pse-mendelejew.de)
License: Free Art License (FAL)
Author(s): Alchemist-hp (https://commons.wikimedia.org/wiki/User:Alchemist-hp)
talk (https://commons.wikimedia.org/wiki/User_talk:Alchemist-hp)
---Image-Copyright-and-Permission---
This channel is dedicated to make Wikipedia, one of the biggest knowledge databases in the world available to people with limited vision.
Article available under a Creative Commons license
Image source in video
- published: 04 Sep 2016
- views: 25
Cobalt
- Order: Reorder
- Duration: 27:40
- Updated: 30 Jul 2014
- views: 286
Cobalt is a chemical element with symbol Co and atomic number 27. Like nickel, cobalt in the Earth's crust is found only in chemically combined form, save for s...
Cobalt is a chemical element with symbol Co and atomic number 27. Like nickel, cobalt in the Earth's crust is found only in chemically combined form, save for small deposits found in alloys of natural meteoric iron. The free element, produced by reductive smelting, is a hard, lustrous, silver-gray metal.
Cobalt-based blue pigments (cobalt blue) have been used since ancient times for jewelry and paints, and to impart a distinctive blue tint to glass, but the color was later thought by alchemists to be due to the known metal bismuth. Miners had long used the name kobold ore (German for goblin ore) for some of the blue-pigment producing minerals; they were so named because they were poor in known metals, and gave poisonous arsenic-containing fumes upon smelting. In 1735, such ores were found to be reducible to a new metal (the first discovered since ancient times), and this was ultimately named for the kobold.
This video is targeted to blind users.
Attribution:
Article text available under CC-BY-SA
Creative Commons image source in video
https://wn.com/Cobalt
Cobalt is a chemical element with symbol Co and atomic number 27. Like nickel, cobalt in the Earth's crust is found only in chemically combined form, save for small deposits found in alloys of natural meteoric iron. The free element, produced by reductive smelting, is a hard, lustrous, silver-gray metal.
Cobalt-based blue pigments (cobalt blue) have been used since ancient times for jewelry and paints, and to impart a distinctive blue tint to glass, but the color was later thought by alchemists to be due to the known metal bismuth. Miners had long used the name kobold ore (German for goblin ore) for some of the blue-pigment producing minerals; they were so named because they were poor in known metals, and gave poisonous arsenic-containing fumes upon smelting. In 1735, such ores were found to be reducible to a new metal (the first discovered since ancient times), and this was ultimately named for the kobold.
This video is targeted to blind users.
Attribution:
Article text available under CC-BY-SA
Creative Commons image source in video
- published: 30 Jul 2014
- views: 286
Mod-02 Lec-02 Metal carbonyl complexes
- Order: Reorder
- Duration: 58:07
- Updated: 14 Oct 2014
- views: 17780
Introduction to Organometallic Chemistry by Prof. A.G. Samuelson,Department of Chemistry and Biochemistry,IISc Bangalore.For more details on NPTEL visit http://...
Introduction to Organometallic Chemistry by Prof. A.G. Samuelson,Department of Chemistry and Biochemistry,IISc Bangalore.For more details on NPTEL visit http://nptel.ac.in
https://wn.com/Mod_02_Lec_02_Metal_Carbonyl_Complexes
Introduction to Organometallic Chemistry by Prof. A.G. Samuelson,Department of Chemistry and Biochemistry,IISc Bangalore.For more details on NPTEL visit http://nptel.ac.in
- published: 14 Oct 2014
- views: 17780
Hexavalent Chromium Treatment with Strong Base Anion
- Order: Reorder
- Duration: 1:01:39
- Updated: 10 Dec 2015
- views: 300
11/13/2014 Water Research Foundation Webcast. On July 1, 2014, the nation’s first MCL specifically for hexavalent chromium [Cr(VI)] was adopted by the Californi...
11/13/2014 Water Research Foundation Webcast. On July 1, 2014, the nation’s first MCL specifically for hexavalent chromium [Cr(VI)] was adopted by the California State Water Resources Control Board Division of Drinking Water, formerly Department of Public Health. In anticipation of and preparation for compliance with the MCL, the Soquel Creek Water District (District) led the WRF Tailored Collaboration project #4488, Hexavalent Chromium Treatment with Strong Base Anion Exchange (SBA-IX), for which this Webcast is based on.
This project conducted an in-depth investigation of SBA-IX for Cr(VI) removal and residual brine management alternatives. While SBA-IX is a well-established drinking water technology for many contaminants, prior to the TC project, limited research had investigated SBA-IX for Cr(VI) removal. Project #4488 revealed that, in the water supply tested, SBA-IX repeatedly achieved greater than 20,000 bed volumes of treatment prior to regeneration. Brine recycle and treatment approaches also proved effective in minimizing waste residuals volumes. The findings from project #4488 confirmed SBA-IX as the best available treatment technology for the District and prompted the District to construct the first SBA-IX system specifically for potable Cr(VI) treatment. The report for this project has been posted on the WRF website.
https://wn.com/Hexavalent_Chromium_Treatment_With_Strong_Base_Anion
11/13/2014 Water Research Foundation Webcast. On July 1, 2014, the nation’s first MCL specifically for hexavalent chromium [Cr(VI)] was adopted by the California State Water Resources Control Board Division of Drinking Water, formerly Department of Public Health. In anticipation of and preparation for compliance with the MCL, the Soquel Creek Water District (District) led the WRF Tailored Collaboration project #4488, Hexavalent Chromium Treatment with Strong Base Anion Exchange (SBA-IX), for which this Webcast is based on.
This project conducted an in-depth investigation of SBA-IX for Cr(VI) removal and residual brine management alternatives. While SBA-IX is a well-established drinking water technology for many contaminants, prior to the TC project, limited research had investigated SBA-IX for Cr(VI) removal. Project #4488 revealed that, in the water supply tested, SBA-IX repeatedly achieved greater than 20,000 bed volumes of treatment prior to regeneration. Brine recycle and treatment approaches also proved effective in minimizing waste residuals volumes. The findings from project #4488 confirmed SBA-IX as the best available treatment technology for the District and prompted the District to construct the first SBA-IX system specifically for potable Cr(VI) treatment. The report for this project has been posted on the WRF website.
- published: 10 Dec 2015
- views: 300
Pollution Info Session #6: Hexavalent Chromium Remediation
- Order: Reorder
- Duration: 1:03:27
- Updated: 19 Apr 2017
- views: 116
Presented by Mr. Sachin Sharma
The presentation focuses on various remediation alternatives (In-Situ and Ex-Situ methods) available today to reduce hexavalent ...
Presented by Mr. Sachin Sharma
The presentation focuses on various remediation alternatives (In-Situ and Ex-Situ methods) available today to reduce hexavalent chromium [Cr (VI)] in soil and groundwater and also includes a brief summary of general health risks from Cr (VI). The implementability, effectiveness, and practical challenges associated with each remediation alternative will be discussed to provide a range of solutions that can be used at a given Cr (VI) impacted site. A case study will also be discussed to show the reduction in pre and post pilot study Cr (VI) levels. Cost effective methods to reduce Cr (VI) concentrations will also be discussed in the presentation.
Mr. Sachin Sharma, P.E. is a certified professional engineer with 13 years of extensive experience in environmental consulting, remediation strategy, project management, and health & safety. He is currently working on a large scale chromium remediation project in New Jersey. His design expertise includes remediation technologies evaluation, physical and chemical treatment processes, equipment sizing and instrumentation, system operation, maintenance & monitoring.
GAHP’s Pollution Info-Sessions is a series of educational presentations featuring experts in pollution and related fields, followed by a Q&A;. Pollution Info-Sessions take place every second Thursday of the month at the same time (8 a.m. EST). Visit www.gahp.net to learn more, get dial-in details.
https://wn.com/Pollution_Info_Session_6_Hexavalent_Chromium_Remediation
Presented by Mr. Sachin Sharma
The presentation focuses on various remediation alternatives (In-Situ and Ex-Situ methods) available today to reduce hexavalent chromium [Cr (VI)] in soil and groundwater and also includes a brief summary of general health risks from Cr (VI). The implementability, effectiveness, and practical challenges associated with each remediation alternative will be discussed to provide a range of solutions that can be used at a given Cr (VI) impacted site. A case study will also be discussed to show the reduction in pre and post pilot study Cr (VI) levels. Cost effective methods to reduce Cr (VI) concentrations will also be discussed in the presentation.
Mr. Sachin Sharma, P.E. is a certified professional engineer with 13 years of extensive experience in environmental consulting, remediation strategy, project management, and health & safety. He is currently working on a large scale chromium remediation project in New Jersey. His design expertise includes remediation technologies evaluation, physical and chemical treatment processes, equipment sizing and instrumentation, system operation, maintenance & monitoring.
GAHP’s Pollution Info-Sessions is a series of educational presentations featuring experts in pollution and related fields, followed by a Q&A;. Pollution Info-Sessions take place every second Thursday of the month at the same time (8 a.m. EST). Visit www.gahp.net to learn more, get dial-in details.
- published: 19 Apr 2017
- views: 116
Metal Complexes 4. Underlying redox principles
- Order: Reorder
- Duration: 22:38
- Updated: 12 Oct 2014
- views: 691
This video begins by outlining the electrochemistry needed to understand the redox chemistry associated with metal complexes. It then looks at examples of coupl...
This video begins by outlining the electrochemistry needed to understand the redox chemistry associated with metal complexes. It then looks at examples of coupling half equations when there are more than just two present in the system. The chemistry of Iron, titanium, vanadium, chromium and copper are used by way of examples. Disproportionation of copper (I) ions in sulfuric acid is considered at the end.
https://wn.com/Metal_Complexes_4._Underlying_Redox_Principles
This video begins by outlining the electrochemistry needed to understand the redox chemistry associated with metal complexes. It then looks at examples of coupling half equations when there are more than just two present in the system. The chemistry of Iron, titanium, vanadium, chromium and copper are used by way of examples. Disproportionation of copper (I) ions in sulfuric acid is considered at the end.
- published: 12 Oct 2014
- views: 691
Thinking critically about sustainable energy: Our fossil fuel future - Bassam Dally
- Order: Reorder
- Duration: 20:33
- Updated: 19 Apr 2011
- views: 150
Bassam Dally of the University of Adelaide talks about low emission combustion technology
Bassam Dally of the University of Adelaide talks about low emission combustion technology
https://wn.com/Thinking_Critically_About_Sustainable_Energy_Our_Fossil_Fuel_Future_Bassam_Dally
Bassam Dally of the University of Adelaide talks about low emission combustion technology
- published: 19 Apr 2011
- views: 150
- Playlist
- Chat
2:30
Make Chromium III Oxide
Subscribe for future videos: http://bit.ly/AMchemistryYT
Like my video? leave a like and a...
published: 05 Aug 2012
Make Chromium III Oxide
Make Chromium III Oxide
- Report rights infringement
- published: 05 Aug 2012
- views: 7950
1:01
3.07 Formula for chromium(III) oxide
published: 24 May 2016
3.07 Formula for chromium(III) oxide
3.07 Formula for chromium(III) oxide
- Report rights infringement
- published: 24 May 2016
- views: 827
1:22
Chromium Chemistry: Chromate from Chromium(III)Oxide
In this video we tried to make some impure Chromate solution.
We mixed some Chromium(III)O...
published: 05 Sep 2016
Chromium Chemistry: Chromate from Chromium(III)Oxide
Chromium Chemistry: Chromate from Chromium(III)Oxide
- Report rights infringement
- published: 05 Sep 2016
- views: 1010
0:12
Chromium (III) Oxide and Ammonia "fireflys"
published: 27 Mar 2013
Chromium (III) Oxide and Ammonia "fireflys"
Chromium (III) Oxide and Ammonia "fireflys"
- Report rights infringement
- published: 27 Mar 2013
- views: 1010
4:47
Metal Complexes 8. Chromium (III) chemistry
This video uses chromium (III) chloride solution to illustrate and explain 3 important che...
published: 27 Oct 2014
Metal Complexes 8. Chromium (III) chemistry
Metal Complexes 8. Chromium (III) chemistry
- Report rights infringement
- published: 27 Oct 2014
- views: 2413
6:00
Make Thermite from Chromium Oxide
Glassware generously provided by http://www.alchemylabsupply.com/
Use the discount code "c...
published: 14 Jan 2016
Make Thermite from Chromium Oxide
Make Thermite from Chromium Oxide
- Report rights infringement
- published: 14 Jan 2016
- views: 70040
4:58
Experiments with Chromium(VI)
In this video the preparation of chromium(VI) from a chromium(III) salt is showed. And som...
published: 09 May 2015
Experiments with Chromium(VI)
Experiments with Chromium(VI)
- Report rights infringement
- published: 09 May 2015
- views: 4487
1:22
"Fire blizzard" [catalytic combustion of ammonia on chromium (III) oxide]
Огненная метель [каталитическое горение аммиака на оксиде хрома (III)]
published: 22 May 2017
"Fire blizzard" [catalytic combustion of ammonia on chromium (III) oxide]
"Fire blizzard" [catalytic combustion of ammonia on chromium (III) oxide]
- Report rights infringement
- published: 22 May 2017
- views: 47
1:09
Metal Complexes 6. Reduction of chromium (III) to Cr (II)
This video demonstrates and explains the reduction of a green chromium (IIII) solution usi...
published: 27 Oct 2014
Metal Complexes 6. Reduction of chromium (III) to Cr (II)
Metal Complexes 6. Reduction of chromium (III) to Cr (II)
- Report rights infringement
- published: 27 Oct 2014
- views: 1578
3:44
Chemical Volcano and Fire Blizzard with Chromium Oxide!
Facebook: https://www.facebook.com/thoisoi2
Patreon: https://www.patreon.com/Thoisoi?ty=h
...
published: 04 Dec 2014
Chemical Volcano and Fire Blizzard with Chromium Oxide!
Chemical Volcano and Fire Blizzard with Chromium Oxide!
- Report rights infringement
- published: 04 Dec 2014
- views: 849450
4:49
Chromium(III) oxide
Chromium oxide is the inorganic compound of the formula Cr
2O
3.It is one of the principal...
published: 25 Aug 2016
Chromium(III) oxide
Chromium(III) oxide
- Report rights infringement
- published: 25 Aug 2016
- views: 248
0:40
Chromium III oxide crystalline structure
published: 21 Sep 2016
Chromium III oxide crystalline structure
Chromium III oxide crystalline structure
- Report rights infringement
- published: 21 Sep 2016
- views: 103
10:57
TEST CHROMIUM III IONS
CATION TEST SALT ANALYSIS
published: 20 Jul 2016
TEST CHROMIUM III IONS
TEST CHROMIUM III IONS
- Report rights infringement
- published: 20 Jul 2016
- views: 1886
2:42
Chromium Chemistry: [Cr(OH)6](3-) and Oxidation to Chromate
In this video we will show another method to make Chromate(VI) from Chromium(III). Now thi...
published: 19 Sep 2016
Chromium Chemistry: [Cr(OH)6](3-) and Oxidation to Chromate
Chromium Chemistry: [Cr(OH)6](3-) and Oxidation to Chromate
- Report rights infringement
- published: 19 Sep 2016
- views: 1006
- Playlist
- Chat
20:02
Writing Ionic Formulas With Transition Metals & Polyatomic Ions - Introduction - Chemistry
This chemistry video tutorial provides an introduction to writing the formula of an ionic ...
published: 16 Aug 2016
Writing Ionic Formulas With Transition Metals & Polyatomic Ions - Introduction - Chemistry
Writing Ionic Formulas With Transition Metals & Polyatomic Ions - Introduction - Chemistry
- Report rights infringement
- published: 16 Aug 2016
- views: 25197
24:57
Exotic Thermite Series Ep. 1: Iron, Chromium, Stainless Steel
(Intro clips from Cody'sLab, NurdRage, and NileRed [obviously])
Hey everyone! Hope you en...
published: 28 Aug 2017
Exotic Thermite Series Ep. 1: Iron, Chromium, Stainless Steel
Exotic Thermite Series Ep. 1: Iron, Chromium, Stainless Steel
- Report rights infringement
- published: 28 Aug 2017
- views: 405
38:30
AQA A2 Chemistry - Chromium Chemistry
This video runs through chromium and the various ions and complexes that it forms.
published: 01 Jun 2015
AQA A2 Chemistry - Chromium Chemistry
AQA A2 Chemistry - Chromium Chemistry
- Report rights infringement
- published: 01 Jun 2015
- views: 17412
27:44
Israel Wachs: Water gas shift reaction over Cr2O3/Fe2O3
published: 11 Mar 2017
Israel Wachs: Water gas shift reaction over Cr2O3/Fe2O3
Israel Wachs: Water gas shift reaction over Cr2O3/Fe2O3
- Report rights infringement
- published: 11 Mar 2017
- views: 22
30:01
Monaural - Chromium - Cr - 384HZ
Name: Chromium
Symbol: Cr
Atomic Number: 24
Atomic Mass: 51.9961 amu
Melting Point: 1857.0...
published: 30 Apr 2016
Monaural - Chromium - Cr - 384HZ
Monaural - Chromium - Cr - 384HZ
- Report rights infringement
- published: 30 Apr 2016
- views: 440
24:57
S. C. York: CO2 as probe of Cr2O3 surface- 1997 spring tristates
published: 01 Mar 2016
S. C. York: CO2 as probe of Cr2O3 surface- 1997 spring tristates
S. C. York: CO2 as probe of Cr2O3 surface- 1997 spring tristates
- Report rights infringement
- published: 01 Mar 2016
- views: 1
35:36
Markus Aichhorn - Hunds coupling and magnetism in technetium and chromium oxides
PROGRAM: STRONGLY CORRELATED SYSTEMS: FROM MODELS TO MATERIALS
DATES: Monday 06 Jan, 2014...
published: 14 Feb 2014
Markus Aichhorn - Hunds coupling and magnetism in technetium and chromium oxides
Markus Aichhorn - Hunds coupling and magnetism in technetium and chromium oxides
- Report rights infringement
- published: 14 Feb 2014
- views: 129
31:55
Metal Complexes 3. Underlying chemical principles
This video compares deprotonation and ligand substitution. On the way, it considers how hy...
published: 01 Oct 2014
Metal Complexes 3. Underlying chemical principles
Metal Complexes 3. Underlying chemical principles
- Report rights infringement
- published: 01 Oct 2014
- views: 884
35:53
Chromium
Chromium is a chemical element which has the symbol Cr and atomic number 24. It is the fir...
published: 24 Jul 2014
Chromium
Chromium
- Report rights infringement
- published: 24 Jul 2014
- views: 3352
37:48
Chromium 6 workshop
Steve Bigely, Coachella Valley Water District Director of Environmental Services, explains...
published: 11 Oct 2013
Chromium 6 workshop
Chromium 6 workshop
- Report rights infringement
- published: 11 Oct 2013
- views: 300
21:01
how to find oxidation number with periodic table
Introduction to Oxidation state. Why compounds have different oxidation states ? Oxidation...
published: 17 Aug 2017
how to find oxidation number with periodic table
how to find oxidation number with periodic table
- Report rights infringement
- published: 17 Aug 2017
- views: 125
32:44
Everything Matters | Aluminum | Ron Hipschman | Exploratorium
Versatile aluminum, once worth nearly twice its weight in gold, has since become the quint...
published: 03 May 2016
Everything Matters | Aluminum | Ron Hipschman | Exploratorium
Everything Matters | Aluminum | Ron Hipschman | Exploratorium
- Report rights infringement
- published: 03 May 2016
- views: 371
25:34
How to Chrome Aluminium - AMAN CHEMICALS INDIA
Alcrome-Al is a chrome agent for Aluminium metals and its alloys . It gives a very thin fi...
published: 24 Jun 2012
How to Chrome Aluminium - AMAN CHEMICALS INDIA
How to Chrome Aluminium - AMAN CHEMICALS INDIA
- Report rights infringement
- published: 24 Jun 2012
- views: 7273
30:26
Chromium
Chromium is a chemical element with symbol Cr and atomic number 24.It is the first element...
published: 04 Sep 2016
Chromium
Chromium
- Report rights infringement
- published: 04 Sep 2016
- views: 25
Writing Ionic Formulas With Transition Metals & Po...
Exotic Thermite Series Ep. 1: Iron, Chromium, Stai...
AQA A2 Chemistry - Chromium Chemistry...
Israel Wachs: Water gas shift reaction over Cr2O3...
Monaural - Chromium - Cr - 384HZ...
S. C. York: CO2 as probe of Cr2O3 surface- 1997 ...
Markus Aichhorn - Hunds coupling and magnetism in ...
Metal Complexes 3. Underlying chemical principles...
Chromium...
Chromium 6 workshop...
how to find oxidation number with periodic table...
Everything Matters | Aluminum | Ron Hipschman | Ex...
How to Chrome Aluminium - AMAN CHEMICALS INDIA...
Chromium...
Cobalt...
Mod-02 Lec-02 Metal carbonyl complexes...
Hexavalent Chromium Treatment with Strong Base Ani...
Pollution Info Session #6: Hexavalent Chromium Rem...
Metal Complexes 4. Underlying redox principles...
Thinking critically about sustainable energy: Our ...
back
Report: Trump Lawyer Brokered $130,000 Payment to Porn Star
Edit The National Herald 13 Jan 2018
WASHINGTON (AP) — President Donald Trump’s personal lawyer brokered a $130,000 payment to a porn actress to prevent her from publicly discussing an alleged sexual encounter with Trump, according to a report Friday in The Wall Street Journal. Trump met Stephanie Clifford, whose goes by the name Stormy Daniels in films, at a golf event in 2006 — a year after Trump’s marriage to his wife, Melania ... ....
back
Ancient Tomb Of Scythian Prince Discovered In Siberia
Edit WorldNews.com 12 Jan 2018
A collaboration between Caspari and researchers from the Russian Academy of Sciences as well as the State Hermitage Museum carried out a preliminary dig over the summer of 2017. They found that Caspari had been right. A paper describing the research was published in the scientific journal Archaeological Research in Asia.The tomb, Tunnug 1, lies in a southern Siberian swamp that's part of the Russian republic of Tuva ... ....
back
Liam Neeson says harassment allegations have become 'a witch-hunt'
Edit The Guardian 13 Jan 2018
Hollywood A-lister suggests the treatment of some celebrities, such as Garrison Keillor, has been excessive. Liam Neeson. Liam Neeson says harassment allegations have become 'a witch-hunt'. Hollywood A-lister suggests the treatment of some celebrities, such as Garrison Keillor, has been excessive. @annalivsey_. Email ... The Late Late Show (@RTELateLateShow) ... Asked what he thought of the sweep of allegations in his industry, Neeson said ... ....
back
Harrods’ Qatari owners to remove Diana and Dodi statue
Edit The National 13 Jan 2018
London luxury department store Harrods is removing a statue of the late Princess Diana and her boyfriend Dodi Al Fayed, in what is being seen as an attempt by its Qatari owners to entice the British royals back through its doors. The statue will be returned to the Knightsbridge store’s former owner and father of Dodi, Mohamed Al Fayed, who commissioned the memorial after the couple were killed in a Paris car crash in 1997 ... Read more.....
back
Protests in Johannesburg over 'racist' H&M; ad
Edit This is Money 13 Jan 2018
An H&M store in Johannesburg's posh Sandton City shopping mall was closed after EFF members stormed inside. South African police Saturday intervened to clear protesters trashing outlets of Swedish clothing giant Hennes and Mauritz in Johannesburg over a controversial advertisement of a black child ... Video footage showed activists trashing displays, kicking over and pulling down clothes rails as well as pushing over mannequins ... ....
Stephen F. Austin now 4-1, rolls past Incarnate Word, 83-63
Edit Richmond Times Dispatch 14 Jan 2018
Shannon Bogues scored 17 points and Leon Gilmore III added 16 ... Shawn Johnson scored 11 points and Charles Brown III and Cody Graham each added 10 for Incarnate Word ......
Racial firestorm surrounds Trump at MLK holiday
Edit This is Money 14 Jan 2018
16, 2017 file photo, President-elect Donald Trump shakes hands with Martin Luther King III, son of Martin Luther King Jr ... King III, met with Trump on the last King holiday, four days before Trump took office ... "I would like to believe that the president's intentions are not to be divisive, but much of what he says seems or feels to be divisive," King III told AP in an interview ... Martin Luther King III, the son of Rev....
BC-BKC--Incarnate Word-SF Austin
Edit Dothan Eagle 14 Jan 2018
BC-BKC--Incarnate Word-SF Austin,137. Stephen F ... Eds. APNewsNow. SF Austin 83, Incarnate Word 63 ... Shannon Bogues scored 17 points and Leon Gilmore III added 16 ... Shawn Johnson scored 11 points and Charles Brown III and Cody Graham each added 10 for Incarnate Word (5-10, 0-5). ....
Ruth Griffin: 10 natural ways to age well
Edit Irish Independent 14 Jan 2018
The beauty world may sell us a lot of lotions and potions that claim to act as 'anti-ageing' but, in truth, there is no such thing. These products can definitely improve the skin's condition, but nothing can turn back time ... They argue that it reinforces the notion that ageing is a bad thing ... Ditch the Chemical SPF ... Mineral sunscreen uses zinc oxide, titanium dioxide or a combination of the two to bounce the rays off your skin ... Oil Slick ... ....
BC-BKC--Houston Baptist-Sam Houston St
Edit Dothan Eagle 14 Jan 2018
BC-BKC--Houston Baptist-Sam Houston St,159. Sam Houston State cruises past Houston Baptist 81-68. Eds. APNewsNow. Sam Houston State 81, Houston Baptist 68 ... Christopher Galbreath Jr ... John Dewey III and Albert Almanza had nine points apiece ... Christopher Galbreath Jr ... John Dewey III and Albert Almanza had nine points apiece ... ....
False alarm on missile creates uneasy moment at Sony Open
Edit Post Bulletin 14 Jan 2018
HONOLULU (AP) — Charles Howell III was eating breakfast in his hotel when the restaurant at the Kahala started buzzing ... ....
D-III hockey: Bearcats spread the wealth
Edit Fosters 14 Jan 2018
ROCHESTER — With their top scorer away on a family vacation, the Somersworth/Coe-Brown hockey team had to resort Plan B.That called for a spread-the-wealth scoring approach. Seven different players lit the lamp for the Bearcats Saturday in a 7-2 Division III win over Kearsarge/Plymouth at the Rochester ......
Cumberland has 18 points, No. 14 Cincinnati routs USF 78-55
Edit The News & Observer 14 Jan 2018
Jarron Cumberland scored 18 points and No. 14 Cincinnati shrugged off a slow start to beat South Florida 78-55 on Saturday night. Jacob Evans III had 16 points and Kyle ... ....
Bates confident in decision to enter NFL Draft
Edit Grand Junction Sentinel 14 Jan 2018
The knee injury that knocked Jessie Bates III out of two games late in Wake Forest’s season meant he wasn’t going to leave for the NFL Draft ... ....
Sam Houston State cruises past Houston Baptist 81-68
Edit The Washington Times 14 Jan 2018
HUNTSVILLE, Texas (AP) - Marcus Harris scored a career-best 27 points and Sam Houston State cruised past Houston Baptist 81-68 on Saturday night. Christopher Galbreath Jr. added 15 points and 13 rebounds for the Bearkats (10-8, 4-1 Southland) who are on a four-game win streak. John Dewey III and Albert ... ....
Pimentel demands full refund from Sanofi for Dengvaxia mess
Edit Inquirer 14 Jan 2018
Senate President Aquilino "Koko" Pimentel III on Sunday called on the Department of Health (DOH) to ask not only for a refund on unused Dengvaxia vaccines, but also for the P3.5 billion cost of the entire contract ... "All the vaccines were defective from the very beginning. Therefore, under our laws, we should demand the whole P3.5 billion we paid them and not j... ....
- 1
- 2
- 3
- 4
- 5
- Next page »
