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Merck
CN

455857

Sodium arsenate dibasic heptahydrate

99.995% trace metals basis

Synonym(s):

Disodium hydrogen arsenate heptahydrate, Sodium hydrogenarsenate heptahydrate

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About This Item

Linear Formula:
Na2HAsO4 · 7H2O
CAS Number:
10048-95-0
Molecular Weight:
312.01
UNSPSC Code:
12352302
PubChem Substance ID:
24869088
MDL number:
MFCD00149179

Key Documents

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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

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

InChI key

KOLXPEJIBITWIQ-UHFFFAOYSA-L

assay

99.995% trace metals basis

form

crystalline

reaction suitability

reagent type: catalyst
core: arsenic

mp

180 °C (dec.) (lit.)

solubility

H2O: slightly soluble(lit.)

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Danger

Hazard Classifications

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

Storage Class

6.1B - Non-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

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Certificates of Analysis (COA)

Lot/Batch Number
MKBS8423V
MKBR6699V
MKBQ6053V
MKBJ9759V
MKBJ4073V

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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
Dae Hyun Baek et al.
Journal of applied toxicology : JAT, 32(8), 617-626 (2011-12-02)
The embryonic stem cell test (EST) is a validated in vitro embryotoxicity test; however, as the inhibition of cardiac differentiation alone is used as a differentiation endpoint in the EST, it may not be a useful test to screen embryotoxic
Deniz Yildiz et al.
Journal of trace elements in medicine and biology : organ of the Society for Minerals and Trace Elements (GMS), 26(1), 53-58 (2011-12-20)
The objective of the present study was to investigate if arsenate V exposure results in glutathione efflux from human erythrocytes. The changes in intracellular and extracellular nonprotein sulfhydryl and glutathione levels were determined in arsenate (V) exposed erythrocytes. Presence of
Samantha L Goggin et al.
Neurotoxicology, 33(5), 1338-1345 (2012-09-11)
Over the past two decades, key advancements have been made in understanding the complex pathology that occurs following not only high levels of arsenic exposure (>1 ppm) but also levels previously considered to be low (<100 ppb). Past studies have
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