- published: 16 Jul 2013
- views: 157203
A phosphate (PO43−) is an inorganic chemical and a salt of phosphoric acid. In organic chemistry, a phosphate, or organophosphate, is an ester of phosphoric acid. Of the various phosphoric acids and phosphates, organic phosphates are important in biochemistry and biogeochemistry (ecology), and inorganic phosphates are mined to obtain phosphorus for use in agriculture and industry. At elevated temperatures in the solid state, phosphates can condense to form pyrophosphates.
The addition and removal of phosphates from proteins in all cells is a pivotal strategy in the regulation of metabolic processes. Phosphorylation and dephosphorylation are important ways that energy is stored and released in living systems.
The phosphate ion is a polyatomic ion with the empirical formula PO43− and a molar mass of 94.97 g/mol. It consists of one central phosphorus atom surrounded by four oxygen atoms in a tetrahedral arrangement. The phosphate ion carries a negative-three formal charge and is the conjugate base of the hydrogen phosphate ion, HPO42−, which is the conjugate base of H2PO4−, the dihydrogen phosphate ion, which in turn is the conjugate base of H
3PO
4, phosphoric acid. A phosphate salt forms when a positively charged ion attaches to the negatively charged oxygen atoms of the ion, forming an ionic compound. Many phosphates are not soluble in water at standard temperature and pressure. The sodium, potassium, rubidium, caesium, and ammonium phosphates are all water-soluble. Most other phosphates are only slightly soluble or are insoluble in water. As a rule, the hydrogen and dihydrogen phosphates are slightly more soluble than the corresponding phosphates. The pyrophosphates are mostly water-soluble.
Phosphate is the "P" in N-P-K; one of three macronutrients that plants need to thrive. Complete with sweeping shots of reclamation land, up-close footage of a dragline in action, and colorful animation of ancient sea life, the Foundation's new Phosphate Mining video shows students the amazing process of mining phosphate and its importance for global food security. For instance, did you know the largest phosphate deposits in North America lie in the Bone Valley Region of central Florida? Furthermore, Georgia, Idaho, Montana, North Carolina, Tennessee, South Carolina, Utah, and Wyoming also have significant phosphate deposits. Scientists believe these large phosphate deposits formed from the skeletons and decomposition of sea creatures that lived during the Miocene period more than 20 mill...
http://www.bulkreefsupply.com/hanna-checker-phosphate-colorimeter.html In this edition of BRStv we discuss what causes high levels of phosphate in the aquarium. Testing methods including the Hanna po4 Checker. We also go over solutions to keep phosphate down such as GFO , biopeellets, good maintenance and wise fish food selections. *Legal Stuff* The purpose and content of this video is to provide general information regarding the products and their applications as presented in the video. Aquatic sales solutions, inc. And its officers, directors, employees and agents disclaim all express or implied warranties, in any way, related to the products and their application as presented in this video, make no representation or warranty regarding the products and the application as presented in t...
Phosphate – that word you keep using might not mean what you think it means. The drive to lower phosphate levels in reef aquaria has consumed reefers for the last decade, but is this never ending quest really necessary to have a thriving reef tank? This talk will discuss successful reef aquariums that run ‘high’ and ‘absurdly high’ phosphate and nitrate levels without experiencing disaster, possible reasons why this is happening, and what this might mean for reef keeping in general. *Legal Stuff* The purpose and content of this video is to provide general information regarding the products and their applications as presented in the video. Aquatic sales solutions, inc. And its officers, directors, employees and agents disclaim all express or implied warranties, in any way, related to the p...
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EmpoweRN.com Here are the nursing exam or NCLEX style questions typed :) You are checking lab values for your patient that sustained 55% burns from a motorcycle accident. You might expect which electrolyte imbalance? Hypercalcemia Hypophosphatemia Hypernatremia Hypermagnesemia Rationale A: Burn patients are not at risk for hypercalcemia. Rationale B: Known causes of hypophosphatemia include stress responses and extensive burns. Rationale C: Burn patients are not at risk for hypernatremia. Rationale D: Burn patients are not at an increased risk for developing increase blood magnesium levels. ANSWER: Option B You are checking lab values for your patient that sustained 55% burns from a motorcycle accident. You might expect which electrolyte imbalance? Hypercalcemia Hypophosphatemia...
WEBSITE: http://www.swimmingpoollearning.com/ YouTube Video Index – A list of all of my videos:http://poolmandave.blogspot.com/2014/03/swimming-pool-tips-reviews-how-to-video.html If your pool has a continuous algae problems with lots of algae blooms even with high Chlorine readings, you may have a Phosphate problem. Try the PHOSfree product as it may cure your problem. It took me some time before I finally started to believe that a product besides an Algaecide would eliminate Algae blooms. I had some accounts that no matter what I added, the aglae would re-bloom a week or so later, even with good chlorine readings. As you can see in this video, the product helps to eliminate an ingredient for algae growth: Phosphates. Phosphates is basically food for algae. If you eliminate Phosphate...
Subscribe to Dr. Greger’s free nutrition newsletter at http://www.nutritionfacts.org/subscribe and get a free excerpt from his latest NYT Bestseller HOW NOT TO DIE. (All proceeds Dr. Greger receives from his books, DVDs, and speaking go to charity). DESCRIPTION: The phosphorus preservatives injected into poultry may not just be an arterial toxin. They also appear to dramatically increase the growth of food poisoning Campylobacter bacteria. Why does the meat industry inject phosphate additives? See my last video, Phosphate Additives in Meat Purge and Cola (http://nutritionfacts.org/video/phosphate-additives-in-meat-purge-and-cola). Other concerning additives used by the meat industry include asthma-type drugs (Ractopamine in Pork, http://nutritionfacts.org/video/ractopamine-in-pork/), b...