Agent Name

Dimethylchlorosilane

CAS Number

1066-35-9

Formula

C2-H7-Cl-Si

Major Category

Toxic Gases & Vapors

Synonyms

Chlorodimethylsilane; Silane, chlorodimethyl-; [ChemIDplus] Chlorodimethylhydrosilane; Dimethylchlorohydrosilane; Dimethylhydrosilyl chloride; Dimethylmonochlorosilane; Dimethylsilyl chloride; [CAMEO] DMCS; [Sigma-Aldrich MSDS] UN2986

Category

Chlorosilanes

Description

Colorless fuming liquid with a pungent, burning odor; Bp = 35 deg C; [CAMEO]

Comments

Reacts violently with water evolving heat and hydrogen chloride gas; Liquid and vapor highly corrosive to skin and respiratory tissue; [CAMEO] Reacts with water producing flammable gases that may ignite spontaneously; Causes burns; Inhalation may cause corrosive injuries to upper respiratory tract and lungs; [Sigma-Aldrich MSDS]

Exposure Assessment
Dangerous When Wet

Yes - A material that, by contact with water, is liable to become spontaneously flammable or to give off flammable or toxic gas at a rate greater than 1 L per kilogram of the material, per hour; [ERG 2004]

Vapor Pressure

442.6 mm Hg

Explanatory Notes

The Guide in the Emergency Response Guidebook is for "Chlorosilanes, corrosive, flammable, n.o.s."

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
Diseases

Occupational diseases associated with exposure to this agent:

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