- Methylarsenic acid
- Methylarsenic sulfide
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Cas Database |
| Name |
Methylarsenic acid |
EINECS | N/A | |
| CAS No. | 124-58-3 | Density | g/cm3 | |
| PSA | 57.53000 | LogP | -1.02980 | |
| Solubility | 218.8g/L(25 oC) | Melting Point |
161° |
|
| Formula | CH5 As O3 | Boiling Point | 393.3°Cat760mmHg | |
| Molecular Weight | 139.97 | Flash Point | 205.8°C | |
| Transport Information | N/A | Appearance | N/A | |
| Safety | Moderately toxic by ingestion and subcutaneous routes. When heated to decomposition it emits toxic fumes of As. | |||
Analytical Methods: | For occupational chemical analysis use NIOSH: Arsenic, Organo-, 5022. |
Risk Codes | N/A | |
| Molecular Structure |
|
Hazard Symbols | Moderately toxic by ingestion. | |
| Synonyms |
Methanearsonicacid (6CI,8CI); MAA; Methylarsonic acid; Monomethylarsonic acid; NSC 71150; NSC71151; NSC 71153; NSC 71154 |
Article Data | 28 |
Methylarsenic acid Chemical Properties
IUPAC Name: Methylarsonic acid
Synonyms: Arsonic acid, As-methyl- ; CMA ; Hydrogen methylarsonate ; MAA ; Methylarsonic acid
CAS NO: 124-58-3
Molecular Formula of Methylarsenic acid (CAS NO.124-58-3) : CH5AsO3
Molecular Weight of Methylarsenic acid (CAS NO.124-58-3) : 139.97
Molecular Structure of Methylarsenic acid (CAS NO.124-58-3) : .png)
EINECS: 204-705-6
Mol File: 124-58-3.mol
Flash Point: 205.8 °C
Enthalpy of Vaporization: 74.36 kJ/mol
Boiling Point: 393.3 °C at 760 mmHg
Vapour Pressure: 8.17E-08 mmHg at 25°C
Methylarsenic acid Uses
Methylarsenic acid (CAS NO.124-58-3) is used for the pharmaceutical industry.
Methylarsenic acid Toxicity Data With Reference
| 1. | orl-rat LD50:961 mg/kg | FAATDF Fundamental and Applied Toxicology. 7 (1986),299. | ||
| 2. | scu-mus LD50:794 mg/kg | 85JCAE Prehled Prumyslove Toxikologie; Organicke Latky Marhold, J.,Prague, Czechoslovakia.: Avicenum,1986,1265. |
Methylarsenic acid Safety Profile
Moderately toxic by ingestion and subcutaneous routes. When heated to decomposition it emits toxic fumes of As.
RIDADR 2759
HazardClass 6.1(b)
PackingGroup III
Methylarsenic acid 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
Methylarsenic acid Analytical Methods
For occupational chemical analysis use NIOSH: Arsenic, Organo-, 5022.
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