Arsenate 2309877 211599478 2008-05-11T04:51:56Z Alexbot 5517884 robot Adding: [[bs:Arsenat]] {{Chembox new |ImageFile=Arsenate.png |ImageSize= |IUPACName=arsorate |OtherNames= |Section1= {{Chembox Identifiers | CASNo= | PubChem=27401 | SMILES=[O-][As](=O)([O-])[O-] }} |Section2= {{Chembox Properties | Formula=AsO<sub>4</sub><sup>3-</sup> | MolarMass=138.919 | Appearance= | Density= | MeltingPt= | BoilingPt= | Solubility= }} |Section3= {{Chembox Hazards | MainHazards= | FlashPt= | Autoignition= }} }} The '''arsenate''' [[ion]] is AsO<sub>4</sub><sup>3&minus;</sup>. An '''arsenate''' (compound) is some compound that contains this ion. ==Ions== Arsenate is much like [[phosphate]]. * In acid conditions we have [[arsenic acid]], H<sub>3</sub>AsO<sub>4</sub>; * in weakly acid conditions we have the '''dihydrogen arsenate''' ion, H<sub>2</sub>AsO<sub>4</sub><sup>&minus;</sup>; * in weakly basic conditions we have '''hydrogen arsenate''' ion HAsO<sub>4</sub><sup>2&minus;</sup>; * and finally, in basic conditions, the arsenate ion AsO<sub>4</sub><sup>3&minus;</sup>. Arsenate has a valency of 5 and is also known as pentavalent arsenic == Arsenate poisoning == Arsenate can replace inorganic [[phosphate]] in the step of [[glycolysis]] that produces[[1,3-bisphosphoglycerate]] to produce [[1-arseno-3-phosphoglycerate]] instead. This molecule is unstable and quickly hydrolyzes, forming the next intermediate in the pathway, [[3-phosphoglycerate]]. Therefore glycolysis proceeds, but the ATP molecule that would be generated from [[1,3-bisphosphoglycerate]] is lost - arsenate is an uncoupler of glycolysis. == External links == {{Commons|Arsenic}} {{wiktionary|arsenic}} * [http://www.atsdr.cdc.gov/HEC/CSEM/arsenic/ Case Studies in Environmental Medicine - Arsenic Toxicity] [[Category:Oxoanions]] {{inorganic-compound-stub}} [[ar:زرنيخات]] [[bs:Arsenat]] [[de:Arsenate]] [[es:Arseniato]] [[nl:Arsenaat]] [[ru:Арсенаты]] [[fi:Arsenaatti]]