0:24
Precipitation Reaction: Sodium Iodide with Mercury(II) Chlor
Precipitation Reaction: Sodium Iodide with Mercury(II) Chlor
If you want to download this video then go to this site: www.downloadvideos.co.nr . Sodium iodide solution is added to mercury(II) chloride solution. Both the reactants and products are toxic. A close up view of the formation of the product is shown.
6:25
Sodium and Iodine
Sodium and Iodine
Sodium metal and elemental iodine are mixed, producing sodium iodide, the salt used to iodize table salt. This reaction is quite vigorous and flaming sodium is shot out of the pyrex container twice, producing a large cloud of vaporized and re-solidified sodium iodide crystals. The reaction was hot enough to crack the pyrex.
0:25
Sodium Iodide with Mercury(II) Chloride
Sodium Iodide with Mercury(II) Chloride
science experiment
0:35
lead(II) nitrate + sodium iodide
lead(II) nitrate + sodium iodide
When solutions of lead (II) nitrate and sodium iodide are mixed, aqueous sodium nitrate is produced along with the precipitate lead(II) iodide.
5:54
a close look INTO a scintillation crystal (radiation detector) / sodium iodide + thallium / NaI(Tl)
a close look INTO a scintillation crystal (radiation detector) / sodium iodide + thallium / NaI(Tl)
here's a little insight on how a scintillation counter works. =) i just quickly put this video together as i felt guilty for not uploading anything during the past weeks - hope you like it!
2:24
Eberline E-520 with Sodium Iodide probe
Eberline E-520 with Sodium Iodide probe
This is a demonstration of a scintillation probe (.75"x.75"x3" NaI ) attached to a vintage Eberline E-520 Geiger counter. Scintillation probes such as this square cross section example, have much greater sensitivity on the order of at least 100 times that of GM tubes. It can detect uranium deposits from much greater distances than GM probes. Most GM tubes less than a foot. The crystal is mounted and sealed against a PMT tube in a square cross section tube 11" in length. NaI (sodium iodide thallium doped) detect gamma radiation which is electromagnetic light of extreme wavelength and power. Gamma rays can penetrate many feet of rock and even thick lead bricks. NaI probes are also used for elemental spectroscopic analysis of radioactive elements.
1:52
Make Iodine from an Alkali Metal Iodide, Hydrochloric Acid and Hydrogen Peroxide
Make Iodine from an Alkali Metal Iodide, Hydrochloric Acid and Hydrogen Peroxide
How to make iodine from an Alkali metal iodide, hydrochloric acid and hydrogen peroxide. Warning: This reaction makes small amounts of chlorine gas and should be performed outside or in a fumehood. Our previous iodine making video: www.youtube.com Simple get some potassium or sodium iodide and dissolve in a minimal amount of water. Then add an equal amount of concentrated hydrochloric acid. Check this new volume and measure out five times more 3%hydrogen peroxide. Mix together the two solutions and let stand for ten minutes. Filter the iodine. You can then purify by vaporization and crystallization. Our website www.nurdrage.com
0:49
Brainiac Toilet Prank Elephant Toothpaste w/ Dr. Bunhead
Brainiac Toilet Prank Elephant Toothpaste w/ Dr. Bunhead
Dr. Bunhead puts some sodium iodide in the toilet bowl and some hydrogen peroxide in the back and when it's flushed it makes a ton of bubbles. Note, the hydrogen peroxide is 30% which you can get from the link below, not regular household stuff. You can get the sodium iodide here, sargentwelch.com And the hydrogen peroxide here, sargentwelch.com
0:32
Chemical Reaction of Sodium Iodide and Lead Nitrate
Chemical Reaction of Sodium Iodide and Lead Nitrate
Created on May 10, 2011 using FlipShare.
11:17
Response to Bionerd23 - "radiation (in) paradise"
Response to Bionerd23 - "radiation (in) paradise"
Bionerd released another good video showing the results of a gamma isotopic analysis of her sand from Brazil. She also compared the results against a sodium iodide detector. I wanted to show a slightly more powerful sodium iodide detector. In the words of popular culture, I wish to, "Represent". :) (Though I can never beat the HPGe detector lol) Here are a few more sodium iodide detector spectrum examples. I made each of these using my setup: WWI Radium Compass anti-proton.com Autunite Uranium Spectrum anti-proton.com Contaminated Soil from Japan anti-proton.com Cheers!
1:31
Lead Iodide Tornado.wmv
Lead Iodide Tornado.wmv
By ExploScience.com, the lead iodide tornado is the classic demonstration of the precipitation reaction between lead nitrate (aq) and sodium iodide (aq) solutions. Both ionic compounds are soluble alone, but when the solutions are combined in an Erlenmeyer flask the lead and iodide ions are insoluble and immediately precipitate out. The effect is accetuated by the automatic stirrer, which gives the bright yellow precipitate a tornado-looking effect. Video and editing by Dr. Chris Schrempp
8:28
radiation detection with a scintillation counter / NaI(Tl) - sensitivity / efficiency
radiation detection with a scintillation counter / NaI(Tl) - sensitivity / efficiency
i've got a fancy new toy - a sodium iodide (NaI(Tl)) scintillation detector! in this video, i am comparing it to the standard geiger-mueller-tube design as well as explain what its advantages and disadvantages are.
1:45
Elepant toothpaste
Elepant toothpaste
SCIENCE FAIR Elephant toothpaste is a chemical reaction that decomposes the H2O2 by the 2M sodium iodide or potassium iodide. H2O2 is decomposed by 2M sodium iodide or potassium iodide and made into water (H2O) and 2 oxygen atoms (O2). Which are normally 2 hydrogen atoms and 2 oxygen atoms which stands for H202 (H2) (O2). So the 2 oxygen atoms push up the mixture of H2O2 and detergent and the 2 oxygen atoms push up the foam produced by the detergent, H2O2, and the iodide. How does elephant toothpaste work? Sodium Iodide H2O2= 2 oxygen atom, 2 hydrogen atom After decomposing in an iodide... =H2O+O2 O2=2 oxygen atom H20= water = foam Potassium Iodide H2O2 + I- =H2O + IO- H2O2 +IO- =H2O +O2 +l- ___________________ 2H2O2 =2H2O =O2 - created at animoto.com
3:20
Elephant Toothpaste.wmv
Elephant Toothpaste.wmv
Hydrogen peroxide normally decomposes into oxygen and water at a very slow rate. When a catalyst, sodium iodide, is added, the rate of reaction increases greatly. Adding a little bit of food coloring and dish soap will help in visualization, and make quite a mess, also. A smouldering wood splint can be thrust into the foam to show the production of oxygen gas. Video and editing by Dr. Chris Schrempp
3:14
Scintillator
Scintillator
Scintillator Devices that emit light, when they absorb ionizing radiation, are often used to register nuclear radiation. These devices are called scintillators. Depending on their production material, there exist inorganic, organic, liquid and gas scintillators. All of them are used in production of scintillation detectors of nuclear radiation. Inorganic scintillators are represented by the iodides and sulfides of alkali and transition metals. Sometimes, to increase the light output, the so-called activator (or dope) is injected into the crystal. For example, the crystalline matrix of sodium iodide in the scintillator NaI (Tl) (sodium iodide-thallium iodide) contains thallium activation centers (admixture at the level of hundredths of a percent). The scintillators that glow without an activator are called self-scintillators. Transparent ceramic scintillators, for example, Yttralox - a solid thorium dioxide solution in the yttrium oxide, represent a special type of inorganic scintillators. Apart from its scintillator properties, this ceramic material is also used as high-temperature glass that is transparent in the IR range. Organic scintillators are the mixtures that consist of two or three components. The primary fluorescence centers are excited due to the loss of energy by the colliding particles. When these excited states break down, light is irradiated in the ultraviolet wavelength range. However, the absorption length of this ultraviolet light is rather small: The <b>...</b>
3:04
02 - Isolating and testing elemental iodine
02 - Isolating and testing elemental iodine
Feel free to ask any question. NOTE: This experiment is not as dangerous as I present it in the warning message. Just take all the safety precautions and you 'll be fine! In this video I show how to isolate elemental iodine from potassium iodide. First, dissolve 20 grams of potassium iodide in 50 mL of water. Then, add in 50 mL of dilute (4-7%) hydrochloric acid. Swirl to get anything reacted. Now pour the solution directly into 50 mL of concentrated (30% w/v) hydrogen peroxide. This concentration of hydrogen peroxide can bleach your skin temporarily. Be careful as throwing in will create small amounts of iodine fumes - which can stain almost everything - and, potentially, tiny amounts of chlorine gas. That 's why this must be performed outside or in a fumehood. To test it, just dissolve a small amount into 10 mL of ethanol (95% stuff works fine) and pour it over a piece of bread. You can also use potato or cereals too, but the blackening of starch will happen slower. If you don't have potassium iodide, you can replace it with the same amount of sodium iodide. In addition, you can use tincture of iodine. But in case you decide to get through this approach, your yield will vary, depending on the amount of the alkali metal iodide that is dissolved. Use the same volume as the solution of potassium iodide. Another fact: Iodine fumes should not exceed the 1 mg/m^3 (of area) limit, otherwise they are considered as toxic. Do NOT ingest elemental iodine. 2-3 grams can kill you <b>...</b>