Skip to Content
Merck

Key Documents

View All Documentation

Skip To

A6631

Potassium arsenate monobasic

Synonym(s):

Arsenic acid potassium salt, Potassium dihydrogen arsenate

Sign In to View Organizational & Contract Pricing.

About This Item

Linear Formula:
KH2AsO4
CAS Number:
7784-41-0
Molecular Weight:
180.03
NACRES:
NA.25
PubChem Substance ID:
24891115
UNSPSC Code:
12352302
EC Number:
232-065-8
MDL number:
MFCD00036296

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

Regulatory Listings

Regulatory Listings are mainly provided for chemical products. Only limited information can be provided here for non-chemical products. No entry means none of the components are listed. It is the user’s obligation to ensure the safe and legal use of the product.

7784-41-0

CAS No.

Choose from one of the most recent versions:

Certificates of Analysis (COA)

Lot/Batch Number

It looks like we've run into a problem, but you can still download Certificates of Analysis from our Documents section.

If you need assistance, please contact Customer Support

Already Own This Product?

Find documentation for the products that you have recently purchased in the Document Library.

Visit the Document Library

Questions

Reviews

No rating value

Active Filters