Dichlorosilane

Synonyms

DCS; Silane, dichloro-; Silicon chloride hydride; [ChemIDplus] UN2189

Category

Chlorosilanes

Description

A flammable and poisonous gas, with a strong repulsive odor; [CAMEO] Vapor density = 3.48 (heavier than air); [Burke, p. 101]

Comments

Extremely flammable; Reacts with water to release HCl; Corrosive to skin and can produce pneumonitis after inhalation; [CSH, p. 168] Corrosive to skin; [Quick CPC] A corrosive substance that can cause injury to the skin, eyes, and respiratory tract; Tear drawing; Inhalation of high concentrations may cause pulmonary edema; Evaporating liquid can cause frostbite; [ICSC]

Biomedical References

Yes

Yes

LC50 (rat) = 215 ppm

Explanatory Notes

Not TIH in land-based spills, but TiH substance released when spilled in water; [ERG 2016]

burn readily

Yes

Yes

Skin burns

Diseases

Occupational diseases associated with exposure to this agent:

• Pneumonitis, toxic

Processes

Industrial Processes with risk of exposure:

• Semiconductor Manufacturing
• Toxic Gas from Spilling Chemical in Water