Potassium dihydrogen arsenate

CAS Registry Number®

7784-41-0
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CAS Name

Potassium dihydrogen arsenate

Molecular Formula

AsH3O4.K

Cite this Page

Potassium dihydrogen arsenate.   CAS Common Chemistry.   CAS, a division of the American Chemical Society, n.d.   http://commonchemistry.cas.org/ChemicalDetail.aspx?ref=7784-41-0 (retrieved 2022-10-04) (CAS RN: 7784-41-0).  Licensed under the Attribution-Noncommercial 4.0 International License (CC BY-NC 4.0).

Compound Properties

  • Melting Point (1)

    288 °C
  • Density (1)

    2.867 g/cm3

Source(s)

  • (1) Hazardous Substances Data Bank data were obtained from the National Library of Medicine (US)

Other Names and Identifiers

InChI

InChI=1S/AsH3O4.K/c2-1(3,4)5;/h(H3,2,3,4,5);

InChIKey

InChIKey=YYYYSSYHIOOMIO-UHFFFAOYSA-N

SMILES

[As](=O)(O)(O)O.[K]

Canonical SMILES

[K].O=[As](O)(O)O

Other Names for this Substance

  • Arsenic acid (H3AsO4), potassium salt (1:1)
  • Potassium arsenate (KH2AsO4)
  • Arsenic acid (H3AsO4), monopotassium salt
  • Macquer's salt
  • Potassium acid arsenate

Deleted or Replaced CAS Registry Numbers

72067-67-5, 1263481-96-4, 1314087-58-5