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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:
Molecular Weight:
312.01
UNSPSC Code:
12352302
PubChem Substance ID:
MDL number:
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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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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
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
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
H J Clewell et al.
Toxicological sciences : an official journal of the Society of Toxicology, 123(2), 421-432 (2011-07-29)
Inorganic arsenic (As(i)) is a known human bladder carcinogen. The objective of this study was to examine the concentration dependence of the genomic response to As(i) in the urinary bladders of mice. C57BL/6J mice were exposed for 1 or 12
Joshua F Robinson et al.
Toxicology and applied pharmacology, 250(2), 117-129 (2010-10-05)
Arsenic (As) and cadmium (Cd) are well-characterized teratogens in animal models inducing embryotoxicity and neural tube defects (NTDs) when exposed during neurulation. Toxicological research is needed to resolve the specific biological processes and associated molecular pathways underlying metal-induced toxicity during

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