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Ammonium arsenate

Names
Other names Ammonium orthoarsenate
Identifiers
CAS Number	24719-13-9
3D model (JSmol)	Interactive image
ChemSpider	11663170
ECHA InfoCard	100.029.152
EC Number	246-428-3
PubChem CID	18762179
CompTox Dashboard (EPA)	DTXSID0036895
InChI InChI=1S/AsH3O4.3H3N/c2-1(3,4)5;;;/h(H3,2,3,4,5);3*1H3Key: SNSGFXVMSAYXTC-UHFFFAOYSA-N InChI=1/AsH3O4.2H3N/c2-1(3,4)5;;/h(H3,2,3,4,5);2*1H3Key: XPVHUBFHKQQSDA-UHFFFAOYAT
SMILES ...(=O)()
Properties
Chemical formula	(NH4)3AsO4 . 3 H2O
Molar mass	247.1 (trihydrate)
Solubility in water	Soluble
Except where otherwise noted, data are given for materials in their standard state (at 25 °C , 100 kPa). Y verify (what is  ?) Infobox references

Ammonium arsenate is the inorganic compound with the formula (NH₄)₃AsO₄. It is prepared by treating a concentrated solution of arsenic acid with ammonia, resulting in precipitation of colorless crystals of the trihydrate. Upon heating, it releases ammonia.

Like other compounds of arsenic, it is classified as an IARC Group 1 carcinogen, i.e. carcinogenic to humans.

Acid salts are also known, including diammonium arsenate and ammonium dihydrogen arsenate.

References

1. "Ammonium Orthoarsenate" in Handbook of Preparative Inorganic Chemistry, 2nd Ed. Edited by G. Brauer, Academic Press, 1963, NY. Vol. 1. p. 602.
2. "Group 1: Carcinogenic to humans". IARC Monographs on the Evaluation of Carcinogenic Risks to Humans. IARC. Archived from the original on 2010-07-01. Retrieved 2010-05-04.

• Ammonium compounds
• Arsenates