Agent Name

tert-Butylarsine

CAS Number

4262-43-5

Formula

C4-H11-As

Major Category

Metals

Synonyms

(1,1-Dimethylethyl)arsine; Arsine, (1,1-dimethylethyl)-; Arsine, tert-butyl- (7CI,8CI); [ChemIDplus] EPI PROOF TBA; 1,1-Dimethylethylarsine; Tertiarybutylarsine; [Akzo Nobel MSDS]

Category

Arsenic Compounds, Organic

Description

Clear colorless liquid with an unpleasant odor; [Akzo Nobel MSDS]

Sources/Uses

Used in semiconductors; [Akzo Nobel MSDS]

Comments

Causes other changes of the liver, kidney, ureter, and bladder in inhalation lethal-concentration studies of rats; [RTECS] Pyrophoric; Causes burns; Inhalation, although unlikely due to high reactivity, may be fatal; Chronic overexposure may cause CNS, skin, eye, respiratory tract, liver, and kidney effects; [Akzo Nobel MSDS] See "Diethylarsine."

Exposure Assessment
PEL (OSHA)

0.5 mg/m3, as As

Vapor Pressure

125 mm Hg

Lethal Concentration

LC50 (rat) = 73.5 ppm/4hr

Adverse Effects
Toxic Pneumonitis

Yes

Dermatotoxin

Skin Burns

Links to Other NLM Databases
Toxicity Information

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Chemical Information

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Related Information in HazMap
Processes

Industrial Processes with risk of exposure: