Agent Name

Sodium arsenate, dibasic

CAS Number

7778-43-0

Formula

As-H-O4.2Na

Major Category

Metals

Synonyms

Sodium arsenate, exsiccated; Arsenic acid, disodium salt; Dibasic sodium arsenate; Disodium arsenate; Disodium arsenic acid; Disodium hydrogen arsenate; Disodium hydrogen orthoarsenate; Disodium monohydrogen arsenate; Hydrogen sodium arsenate (HNa2AsO4); Shaughnessy 013505; Sodium acid arsenate; Sodium arsenate; Sodium arsenate dibasic, anhydrous; Sodium biarsenate; [ChemIDplus] UN1685

Category

Arsenic Compounds, Inorganic

Description

Colorless to white solid; [ICSC]

Sources/Uses

Used in dyeing with turkey-red oil, in printing fabrics, as a germicide, and as a poison on fly-papers; Used formerly as an insecticide in ant syrups and an antimalarial and dermatologic drug; Used in veterinary medicine for parasites (internally and externally) and other diseases (skin, blood, rheumatism, and asthma); [HSDB]

Comments

A skin, eye, and respiratory tract irritant; May cause arsenic poisoning; [ICSC] Primary irritant; Dibasic sodium arsenate contains 40% arsenic in the anhydrous form and 24% arsenic in the more common hydrate form; [HSDB] Heptahydrate: An irritant; May cause liver and kidney injury; [MSDSonline] See "Disodium arsenate heptahydrate." See "Arsenic" and the linked occupational diseases.

Restricted

EPA: "All registered products for nonwood use that contain the inorganic arsenicals ... sodium arsenate ... are cancelled and applications denied." [HSDB]

Exposure Assessment
BEI

Inorganic arsenic plus methylated metabolites in urine = 35 ug As/L; end of workweek;

TLV (ACGIH)

0.01 mg/m3, as As

PEL (OSHA)

0.01 mg/m3, as As

IDLH (NIOSH)

5 mg/m3, as As

Adverse Effects
Anemia

Anemia, Aplastic

Neurotoxin

Sensorimotor Neuropathy

Hepatotoxin

Hepatotoxin, Secondary

Reproductive Toxin

Yes

IARC Carcinogen

Known Carcinogen

NTP Carcinogen

Human Carcinogen

ACGIH Carcinogen

Confirmed Human

Links to Other NLM Databases
Health Studies

Human Health Effects from Hazardous Substances Data Bank:

Toxicity Information

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Chemical Information

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Biomedical References

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Related Information in HazMap
Diseases

Occupational diseases associated with exposure to this agent:

Processes

Industrial Processes with risk of exposure: