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Key Documents

S9663

Sigma-Aldrich

Sodium arsenate dibasic heptahydrate

ACS reagent, ≥98%

Synonyme(s) :

Disodium hydrogen arsenate heptahydrate, di-Sodium hydrogen arsenate heptahydrate

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About This Item

Formule linéaire :
Na2HAsO4 · 7H2O
Numéro CAS:
Poids moléculaire :
312.01
Numéro MDL:
Code UNSPSC :
12352302
ID de substance PubChem :
Nomenclature NACRES :
NB.24

Qualité

ACS reagent

Niveau de qualité

Pureté

≥98%
98.0-102.0%

Forme

powder

Impuretés

≤0.005% Insoluble matter

pH

8.5-9 (25 °C, 50 g/L)

Traces d'anions

arsenite (As2O3): ≤0.01%
chloride (Cl-): ≤0.001%
nitrate (NO3-): ≤0.005%
sulfate (SO42-): ≤0.01%

Traces de cations

Fe: ≤0.001%
heavy metals (as Pb): ≤0.002%

Chaîne SMILES 

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

InChI

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

Clé InChI

KOLXPEJIBITWIQ-UHFFFAOYSA-L

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Application

Sodium arsenate dibasic heptahydrate can be used as an internal standard for the quantification of arsenic species using various spectroscopic methods.

Pictogrammes

Skull and crossbonesHealth hazardEnvironment

Mention d'avertissement

Danger

Mentions de danger

Classification des risques

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

Code de la classe de stockage

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

Classe de danger pour l'eau (WGK)

WGK 3

Point d'éclair (°F)

Not applicable

Point d'éclair (°C)

Not applicable


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Consulter la Bibliothèque de documents

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
M Sri Lakshmi Sunita et al.
Ecotoxicology (London, England), 21(1), 202-212 (2011-09-01)
In the present study, 44 arsenic-resistant bacteria were isolated through serial dilutions on agar plate with concentrations ≥0.05 mM of sodium arsenite and ≥10 mM of sodium arsenate from Mandovi and Zuari--estuarine water systems. The ars genotype characterization in 36
Deniz Yildiz et al.
Biological trace element research, 150(1-3), 451-459 (2012-08-15)
The objective of the present study was to investigate if arsenic exposure results in glutathione efflux from human erythrocytes. Arsenite significantly depleted intracellular nonprotein thiol level in a time- and concentration-dependent manner. The intracellular nonprotein thiol level was decreased to
Takayuki Watanabe et al.
Archives of toxicology, 85(6), 577-588 (2011-05-04)
It has been suggested that arsenic (+3 oxidation state) methyltransferase (AS3MT) plays a critical role in methylation of arsenic, and that arsenic-glutathione conjugate is a substrate for AS3MT-catalyzed methylation of arsenic. However, the mechanism of arsenic methylation in cells is
K M Anderson et al.
Anticancer research, 31(2), 487-494 (2011-03-08)
It has been reported that human prostate-derived PC-3 cells that are CD44- and CD 41 (a2 B1)-positive are enriched in cancer stem cells. This study compared the effect of PC-3 cell proliferation under normoxia or hypoxia on the initial and

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