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Merck
CN

A6756

Sodium arsenate dibasic heptahydrate

≥98.0%

Synonym(s):

Disodium hydrogen arsenate heptahydrate, di-Sodium hydrogen arsenate heptahydrate

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About This Item

Linear Formula:
Na2HAsO4 · 7H2O
CAS Number:
Molecular Weight:
312.01
NACRES:
NA.21
PubChem Substance ID:
UNSPSC Code:
12352302
MDL number:
Assay:
≥98.0%
Form:
powder
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Product Name

Sodium arsenate dibasic heptahydrate, ≥98.0%

InChI

1S/AsH3O4.2Na.7H2O/c2-1(3,4)5;;;;;;;;;/h(H3,2,3,4,5);;;7*1H2/q;2*+1;;;;;;;/p-2

SMILES string

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

InChI key

KOLXPEJIBITWIQ-UHFFFAOYSA-L

assay

≥98.0%

form

powder

reaction suitability

reagent type: catalyst
core: arsenic

pH

8.5-9.0 (25 °C, 50 g/L)

Quality Level

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Application

Sodium arsenate dibasic heptahydrate may be used as a reference standard for the quantification of arsenic compounds in rice- and seafood-based samples by ion chromatography-inductively coupled plasma/ mass spectrometry. The samples for analysis were prepared by ultrasonic-assisted enzymatic extraction (UAEE).

General description

Sodium arsenate dibasic heptahydrate (As(V)) is an arsenic compound.

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 Information

危险化学品
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Validation of a method for arsenic speciation in food by ion chromatography-inductively coupled plasma/mass spectrometry after ultrasonic-assisted enzymatic extraction.
Dufailly V, et al.
Journal of AOAC (Association of Official Analytical Chemists) International, 94(3), 947-958 (2011)
Shugo Suzuki et al.
Toxicology, 299(2-3), 155-159 (2012-06-06)
Inorganic arsenic is a known human carcinogen, inducing tumors of the skin, urinary bladder and lung. It is metabolized to organic methylated arsenicals. 2,3-Dimercaptopropane-1-sulfonic acid (DMPS), a chelating agent, is capable of reducing pentavalent arsenicals to the trivalent state and
Tatyana S Pinyayev et al.
Chemical research in toxicology, 24(4), 475-477 (2011-03-11)
The conventional scheme for arsenic methylation accounts for methylated oxyarsenical production but not for thioarsenical formation. Here, we report that in vitro anaerobic microbiota of mouse cecum converts arsenate into oxy- and thio- arsenicals. Besides methylarsonic acid (MMA(V)), arsenate was
William Brattin et al.
Journal of toxicology and environmental health. Part A, 76(7), 449-457 (2013-04-25)
This study describes a method for measuring the relative oral bioavailability (RBA) of arsenic (As) in soil and other soil-like media using young swine as the animal model. Groups of animals are exposed to site soil or sodium arsenate orally
Mark J Canet et al.
Drug metabolism and disposition: the biological fate of chemicals, 40(9), 1817-1824 (2012-06-16)
Nonalcoholic fatty liver disease (NAFLD) is represented by a spectrum of liver pathologies ranging from simple steatosis to nonalcoholic steatohepatitis (NASH). Liver damage sustained in the progressive stages of NAFLD may alter the ability of the liver to properly metabolize

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