Ammonium dihydrogen arsenate
{{Chembox
| Name = Ammonium dihydrogen arsenate
| ImageFile =
| ImageSize =
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| IUPACName = arsoric acid;azane
| OtherNames = Ammonium hydrogen arsenate
| Section1 = {{Chembox Identifiers
| CASNo = 13462-93-6
| ChemSpiderID = 145946
| UNII = 0KYL9Q413A
| DTXSID = DTXSID0065480
| EINECS = 236-667-1
| PubChem = 121233660
| StdInChI = 1S/AsH3O4.H3N/c2-1(3,4)5;/h(H3,2,3,4,5);1H3
| StdInChIKey = VTWJXWNBCACAAK-UHFFFAOYSA-N
| SMILES = [As](=O)(O)(O)O.N
}}
| Section2 = {{Chembox Properties
| N=1|H=6|As=1|O=4
| MolarMass =
| Appearance = colorless crystals
| Density = 2.34 g/mL
| MeltingPt = 300
| BoilingPt =
| Solubility = soluble
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| Section3 = {{Chembox Hazards
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| GHSSignalWord = Danger{{cite web |title=Ammonium Dihydrogen Arsenate |url=https://www.americanelements.com/ammonium-dihydrogen-arsenate-13462-93-6 |publisher=American Elements |access-date=4 November 2024 |language=en}}
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Ammonium dihydrogen arsenate is an inorganic chemical compound with the chemical formula {{chem2|NH4H2AsO4}}.{{cite web |title=Ammonium dihydrogen arsenate {{!}} CAS 13462-93-6 {{!}} SCBT - Santa Cruz Biotechnology |url=https://www.scbt.com/p/ammonium-dihydrogen-arsenate-13462-93-6 |publisher=scbt.com |access-date=4 November 2024 |language=en}}{{cite journal |last1=Perrino |first1=Charles T. |last2=Van de ven |first2=Jamie |title=An electrolysis and conductivity study on ammonium dihydrogen arsenate |journal=Journal of Solid State Chemistry |date=1 February 1977 |volume=20 |issue=2 |pages=201–203 |doi=10.1016/0022-4596(77)90068-8 |bibcode=1977JSSCh..20..201P |url=https://www.sciencedirect.com/science/article/abs/pii/0022459677900688 |access-date=4 November 2024 |issn=0022-4596}}
Synthesis
The effect of ammonia on a concentrated solution of arsenic acid:
::{{chem2|NH3 + H3AsO4 -> NH4H2AsO4}}
Physical properties
The compound forms colorless crystals, soluble in water.{{cite book |last1=Martienssen |first1=Werner |last2=Warlimont |first2=Hans |title=Springer Handbook of Condensed Matter and Materials Data |date=21 September 2006 |publisher=Springer Science & Business Media |isbn=978-3-540-30437-1 |page=1096 |url=https://books.google.com/books?id=TnHJX79b3RwC&dq=Ammonium+dihydrogen+arsenate&pg=PA1096 |access-date=4 November 2024 |language=en}}
Uses
The compound is used as a pharmaceutical intermediate.{{cite web |title=Ammonium dihydrogen arsenate, 98%, Thermo Scientific Chemicals - Chemicals, Salts and Inorganics |url=https://www.fishersci.se/shop/products/ammonium-dihydrogen-arsenate-98-2/p-7049934 |publisher=Fisher Scientific |access-date=4 November 2024 |language=en}}
Ferroelectric, a material of nonlinear optics.{{cite journal |last1=Milek |first1=J. T. |last2=Neuberger |first2=M. |title=Ammonium Dihydrogen Arsenate (ADA) |journal=Linear Electrooptic Modular Materials |date=1972 |pages=15–22 |doi=10.1007/978-1-4684-6168-8_3 |url=https://link.springer.com/chapter/10.1007/978-1-4684-6168-8_3 |access-date=4 November 2024 |publisher=Springer US |isbn=978-1-4684-6170-1 |language=en}}