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Merck
CN

A6631

Potassium arsenate monobasic

Synonym(s):

Arsenic acid potassium salt, Potassium dihydrogen arsenate

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About This Item

Linear Formula:
KH2AsO4
CAS Number:
Molecular Weight:
180.03
NACRES:
NA.25
PubChem Substance ID:
UNSPSC Code:
12352302
EC Number:
232-065-8
MDL number:
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form

powder

reaction suitability

reagent type: catalyst
core: arsenic

mp

277-283 °C (lit.)

SMILES string

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

InChI

1S/AsH3O4.K/c2-1(3,4)5;/h(H3,2,3,4,5);/q;+1/p-1

InChI key

GVPLVOGUVQAPNJ-UHFFFAOYSA-M

Application

Potassium arsenate may be used as a reference material during the analysis of biological materials for the presence of arsenate. Potassium arsenate is used as a metabolic inhibitor and toxicity agent.


signalword

Danger

Hazard Classifications

Acute Tox. 3 Inhalation - Acute Tox. 3 Oral - Aquatic Acute 1 - Aquatic Chronic 1 - Carc. 1A

Storage Class

6.1A - Combustible acute toxic Cat. 1 and 2 / very toxic hazardous materials

wgk

WGK 3

flash_point_f

Not applicable

flash_point_c

Not applicable

ppe

Eyeshields, Faceshields, Gloves, type P3 (EN 143) respirator cartridges



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