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| Name |
Methanearsonic acid, monoammonium salt |
EINECS | N/A |
| CAS No. | 2321-53-1 | Density | g/cm3 |
| PSA | 60.77000 | LogP | -0.70590 |
| Solubility | N/A | Melting Point |
160.5oC |
| Formula | CH5 As O3 . H3 N | Boiling Point | 393.3°Cat760mmHg |
| Molecular Weight | 157.02 | Flash Point | 205.8°C |
| Transport Information | N/A | Appearance | N/A |
| Safety | Moderately toxic by ingestion and intraperitoneal routes. Mutation data reported. When heated to decomposition it emits toxic vapors of NH3 and As. | Risk Codes | N/A |
| Molecular Structure |
|
Hazard Symbols | N/A |
| Synonyms |
Methanearsonicacid, monoammonium salt (8CI); Ammonium methanearsonate; Ansar 157; MAMA;Monoammonium methanearsonate |
Methanearsonic acid, monoammonium salt Chemical Properties
IUPAC name of Methanearsonic acid, monoammonium salt (CAS NO.2321-53-1): Azanium hydroxy(methyl)arsinate
Synonyms: Caswell No. 580C ; Azanium methyl-oxido-arsinic acid ; Monoammoniummethanearsonate ; Ansar-157 ; Methylarsonic acid hydrogen ammonium salt
CAS: 2321-53-1
Molecular Weight: 157.00072 g/mol
Molecular Formula: CH8AsNO3
Molecular Structure:
.png)
Index of Refraction: 1.554
Density: 1.205 g/cm3
Flash Point: 175.8 °C
Boiling Point: 344.3 °C at 760 mmHg
Methanearsonic acid, monoammonium salt Toxicity Data With Reference
The toxicity of Methanearsonic acid, monoammonium salt (CAS NO.2321-53-1):
| Organism | Test Type | Route | Reported Dose (Normalized Dose) | Effect | Source |
|---|---|---|---|---|---|
| mouse | LD50 | intraperitoneal | > 1gm/kg (1000mg/kg) | National Technical Information Service. Vol. AD691-490, | |
| rat | LD50 | oral | 750mg/kg (750mg/kg) | "Pesticide Index," Frear, E.H., ed., State College, PA, College Science Pub., 1969Vol. 4, Pg. 266, 1969. |
Methanearsonic acid, monoammonium salt Consensus Reports
Arsenic and its compounds are on the Community Right-To-Know List.
Methanearsonic acid, monoammonium salt Safety Profile
The safety information of Methanearsonic acid, monoammonium salt (CAS NO.2321-53-1):
Moderately toxic by ingestion and intraperitoneal routes. Mutation data reported. When heated to decomposition it emits toxic vapors of NH3 and As.
Methanearsonic acid, monoammonium salt Standards and Recommendations
OSHA PEL: TWA 0.5 mg(As)/m3
ACGIH TLV: BEI: 35 µ (As)/L inorganic arsenic and methylated metabolites in urine
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