Trimethylarsine
Agent Name
Trimethylarsine
CAS Number
593-88-4
Formula
C3-H9-As
Major Category
Metals
Synonyms
Arsine, trimethyl-; Trimethylarsenic; [ChemIDplus] UN1993
Category
Arsenic Compounds, Organic
Description
Colorless liquid; [Sigma-Aldrich MSDS]
Sources/Uses
"Trimethylarsine is the volatile byproduct of microbial action on inorganic forms of arsenic which are naturally occurring in rocks and soils at the parts-per-million level. Trimethylarsine has been reported only at trace levels (parts per billion) in landfill gas from Germany, Canada, and the U.S.A., and is the major arsenic-containing compound in the gas." [Wikipedia]
Comments
Causes somnolence, tremor, and ataxia in inhalation lethal-concentration studies of mice; [RTECS] May cause irritation; [Sigma-Aldrich MSDS] See "Triphenylarsine," "Diethylarsine," and "tert-Butylarsine."
Biomedical References
Exposure Assessment
PEL (OSHA)
0.5 mg/m3, as As
Lethal Concentration
LC50 (mouse) = 20,500 ppm/4hr
Explanatory Notes
The Guide in the Emergency Response Guidebook is for "Flammable liquid, n.o.s."
Diseases, Processes, and Activities Linked to This Agent
Other Information
No other related information on this agent was found.