English Safety Data Sheet Database 中文版 MSDS

Sodium arsenate, dibasic

CAS No. 7778-43-0 | PubChem CID 24500
Section 1. Identification
Chemical NameSodium arsenate, dibasic CAS No.7778-43-0
Synonymsdisodiumarsenate;sodiumarsenate; sodiumorthoarsenate Chinese Name砷酸钠(一氢)
Molecular FormulaNa2HAsO4·7H2O Molecular Weight312.01
UN No.1557 Data SourcePubChem (NIH/NLM)
GHS Hazard Classification
Signal Word DANGER
Pictograms GHS06 · Acute Toxic GHS07 · Irritant GHS08 · Health Hazard GHS09 · Environmental Hazard
Hazard Statements H301H331H350H400H410H319H361H370H372H315H320H312H341H373
Precautionary Statements P203P261P264P270P271P273P280P301+P316P304+P340P316P318P321P330P391P403+P233P405P501P260P264+P265P305+P351+P338P308+P316P319P337+P317P302+P352P332+P317P362+P364P317

Section 2. Hazards Identification

H301+H331 (97.2%): Toxic if swallowed or if inhaled [Danger Acute toxicity, oral; acute toxicity, inhalation]

H301 (100%): Toxic if swallowed [Danger Acute toxicity, oral]

H331 (100%): Toxic if inhaled [Danger Acute toxicity, inhalation]

H350 (100%): May cause cancer [Danger Carcinogenicity]

H400 (100%): Very toxic to aquatic life [Warning Hazardous to the aquatic environment, acute hazard]

H410 (100%): Very toxic to aquatic life with long lasting effects [Warning Hazardous to the aquatic environment, long-term hazard]

P203, P261, P264, P270, P271, P273, P280, P301+P316, P304+P340, P316, P318, P321, P330, P391, P403+P233, P405, and P501 (click each P-code to see the statement)

Aggregated GHS information provided per 108 reports by companies from 5 notifications to the ECHA C&L Inventory. Each notification may be associated with multiple companies.

Information may vary between notifications depending on impurities, additives, and other factors. The percentage value in parenthesis indicates the notified classification ratio from companies that provide hazard codes. Only hazard codes with percentage values above 10% are shown. For more detailed information, please visit ECHA C&L website.

H319: Causes serious eye irritation [Warning Serious eye damage/eye irritation]

H350: May cause cancer [Danger Carcinogenicity]

H361: Suspected of damaging fertility or the unborn child [Warning Reproductive toxicity]

H370: Causes damage to organs [Danger Specific target organ toxicity, single exposure]

H372: Causes damage to organs through prolonged or repeated exposure [Danger Specific target organ toxicity, repeated exposure]

P203, P260, P264, P264+P265, P270, P280, P305+P351+P338, P308+P316, P318, P319, P321, P337+P317, P405, and P501 (click each P-code to see the statement)

H315: Causes skin irritation [Warning Skin corrosion/irritation]

H320: Causes eye irritation [Warning Serious eye damage/eye irritation]

P203, P260, P264, P264+P265, P270, P280, P302+P352, P305+P351+P338, P308+P316, P318, P319, P321, P332+P317, P337+P317, P362+P364, P405, and P501 (click each P-code to see the statement)

H301: Toxic if swallowed [Danger Acute toxicity, oral]

H312: Harmful in contact with skin [Warning Acute toxicity, dermal]

H331: Toxic if inhaled [Danger Acute toxicity, inhalation]

H341: Suspected of causing genetic defects [Warning Germ cell mutagenicity]

H361d: Suspected of damaging the unborn child [Warning Reproductive toxicity]

H373: May causes damage to organs through prolonged or repeated exposure [Warning Specific target organ toxicity, repeated exposure]

P203, P260, P261, P264, P270, P271, P280, P301+P316, P302+P352, P304+P340, P316, P317, P318, P319, P321, P330, P362+P364, P403+P233, P405, and P501 (click each P-code to see the statement)

Section 8. Exposure Controls / Personal Protection

Biological Exposure Indices (BEI) [ACGIH] - Inorganic arsenic plus methylated metabolites in urine = 35 ug As/L; end of workweek;

0.01 [mg/m3], as As

5.0 [mg/m3], as As

Section 9. Physical and Chemical Properties

Colorless to white solid; [ICSC]

Metals -> Arsenic Compounds, Inorganic

Section 11. Toxicological Information

Neurotoxin - Sensorimotor

Occupational hepatotoxin - Secondary hepatotoxins: the potential for toxic effect in the occupational setting is based on cases of poisoning by human ingestion or animal experimentation.

Aplastic anemia - The presence of increased methemoglobin in the blood; the compound is classified as primary toxic effect.

Reproductive Toxin - A chemical that is toxic to the reproductive system, including defects in the progeny and injury to male or female reproductive function. Reproductive toxicity includes developmental effects. See Guidelines for Reproductive Toxicity Risk Assessment.

IARC Carcinogen - Class 1: International Agency for Research on Cancer classifies chemicals as established human carcinogens.

NTP Carcinogen - Known to be a human carcinogen.

ACGIH Carcinogen - Confirmed Human.

Source: PubChem CID 24500 (NIH/NLM, public domain). Retrieved from PubChem, a public-domain chemistry database maintained by the U.S. National Library of Medicine. Last updated: 2026-08-02 09:20:23.
Disclaimer: This information is compiled for reference only and does not replace the manufacturer's official Safety Data Sheet. Always consult the supplier's SDS before handling any chemical.