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| CAS No.: | 7631-89-2 |
|---|---|
| Name: | arsenic acid, sodium salt |
| Molecular Structure: | |
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| Formula: | AsH3O4•7 Na |
| Molecular Weight: | 202.94 |
| Melting Point: | 86.3 °C |
| Safety: | Confirmed human carcinogen with experimental tumorigenic data. Poison by ingestion, intravenous, and intraperitoneal routes. An experimental teratogen. Other experimental reproductive effects. Mutation data reported. When heated to decomposition it emits toxic fumes of As and Na2O. See also ARSENIC COMPOUNDS. |
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Chemistry
Molecular Formula: AsNa3O4
Molar mass: 207.89 g/mol
EINECS: 231-547-5
Water solubility: Soluble in water forming weakly acidic solutions
Appearance: Colorless to white crystalline solid
Product categories of Arsenic acid, trisodium salt (CAS NO.7631-89-2): Inorganics
Structure of Arsenic acid, trisodium salt (CAS NO.7631-89-2):
Systematic Name: Trisodium arsorate
SMILES: [Na+].[Na+].[Na+].[O-][As]([O-])([O-])=O
InChI: InChI=1/AsH3O4.3Na/c2-1(3,4)5;;;/h(H3,2,3,4,5);;;/q;3*+1/p-3
InChIKey: CDBAKLRDFBGJOX-DFZHHIFOAK
Std. InChI: InChI=1S/AsH3O4.3Na/c2-1(3,4)5;;;/h(H3,2,3,4,5);;;/q;3*+1/p-3
Std. InChIKey: CDBAKLRDFBGJOX-UHFFFAOYSA-K
Toxicity Data With Reference
| 1. | cyt-hmn:lym 2 µmol/L | ADREDL Archives of Dermatological Research. 267 (1980),91. | ||
| 2. | ipr-rat LDLo:49 mg/kg | JPETAB Journal of Pharmacology and Experimental Therapeutics. 58 (1936),454. | ||
| 3. | ivn-rat LDLo:85 mg/kg | JPETAB Journal of Pharmacology and Experimental Therapeutics. 33 (1928),270. | ||
| 4. | orl-rbt LDLo:51 mg/kg | JPETAB Journal of Pharmacology and Experimental Therapeutics. 33 (1928),270. | ||
| 5. | ivn-rbt LDLo:28 mg/kg | JPETAB Journal of Pharmacology and Experimental Therapeutics. 33 (1928),270. |
Consensus Reports
IARC Cancer Review: Human Sufficient Evidence IMEMDT IARC Monographs on the Evaluation of Carcinogenic Risk of Chemicals to Man . 23 (1980),p. 39.(World Health Organization, Internation Agency for Research on Cancer,Lyon, France.: ) (Single copies can be ordered from WHO Publications Centre U.S.A., 49 Sheridan Avenue, Albany, NY 12210) ; Animal Inadequate Evidence IMEMDT IARC Monographs on the Evaluation of Carcinogenic Risk of Chemicals to Man . 2 (1973),p. 48.(World Health Organization, Internation Agency for Research on Cancer,Lyon, France.: ) (Single copies can be ordered from WHO Publications Centre U.S.A., 49 Sheridan Avenue, Albany, NY 12210) ; IMEMDT IARC Monographs on the Evaluation of Carcinogenic Risk of Chemicals to Man . 23 (1980),p. 39.(World Health Organization, Internation Agency for Research on Cancer,Lyon, France.: ) (Single copies can be ordered from WHO Publications Centre U.S.A., 49 Sheridan Avenue, Albany, NY 12210) . Reported in EPA TSCA Inventory. Arsenic and its compounds are on the Community Right-To-Know List. EPA Extremely Hazardous Substances List.
Safety Profile
Confirmed human carcinogen with experimental tumorigenic data. Poison by ingestion, intravenous, and intraperitoneal routes. An experimental teratogen. Other experimental reproductive effects. Mutation data reported. When heated to decomposition it emits toxic fumes of As and Na2O. See also ARSENIC COMPOUNDS.
Standards and Recommendations
OSHA PEL: TWA 0.01 mg(As)/m3; Cancer Hazard
ACGIH TLV: TWA 0.01 mg/m3; Confirmed Human Carcinogen; BEI: 35 μ (As)/L inorganic arsenic and methylated metabolites in urine
NIOSH REL: CL 2 µg(As)/m3/15 M
DOT Classification: 6.1; Label: Poison
Specification
Arsenic acid, trisodium salt ,its cas register number is 7631-89-2.It also can be called Arsenic(V) acid, trisodium salt, heptahydrate (1:3:7) ; Sodium arsenate ; Monosodium arsenate and Arsenate, sodium .The resulting solutions contain moderate concentrations of hydrogen ions and have pH's of less than 7.0. They react as acids to neutralize bases. These neutralizations generate heat, but less or far less than is generated by neutralization of inorganic acids, inorganic oxoacids, and carboxylic acid. They usually do not react as either oxidizing agents or reducing agents but such behavior is not impossible. Many of these compounds catalyze organic reactions.When heated to decomposition, Arsenic acid, trisodium salt (CAS NO.7631-89-2) emits toxic fumes of arsenic.