Methylarsenic acid supplier

Name
METHYLARSONIC ACID
EINECS
CAS No. 124-58-3
Article Data28
CAS DataBase
Density g/cm³
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
Appearance
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
Molecular Structure
Hazard Symbols Moderately toxic by ingestion.
Synonyms Methanearsonicacid (6CI,8CI); MAA; Methylarsonic acid; Monomethylarsonic acid; NSC 71150; NSC71151; NSC 71153; NSC 71154
PSA 57.53000
LogP -1.02980

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) :
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.

Product Name

METHYLARSONIC ACID