Phenyltrichlorosilane
Agent Name
Phenyltrichlorosilane
CAS Number
98-13-5
Formula
C6-H5-Cl3-Si
Major Category
Toxic Gases & Vapors
Synonyms
Phenylsilicon trichloride; Silane, phenyltrichloro-; Silicon phenyl trichloride; Trichlorophenylsilane; Benzene, (trichlorosilyl)-; Silane, trichlorophenyl-; Trichloro(phenyl)silane; [ChemIDplus] UN1804
Category
Chlorosilanes
Description
Colorless liquid; [Hawley]
Sources/Uses
Used as monomer for polymers in water repellents, electrical insulating resins, and heat-resistant resins for paints; Also used to make silicones; [HSDB]
Comments
A strong tissue irritant; [Hawley] Produces hydrogen chloride when spilled in water; [ERG 2016] Reacts violently with water producing gaseous hydrogen chloride; A corrosive substance that can cause injury to the skin, eyes, and respiratory tract; "Inhalation -- lungs may fill up with fluid or throat may swell causing suffocation." [CAMEO] Reacts with water; A corrosive substance that can cause injury to the skin, eyes, and respiratory tract; Inhalation may cause chemical pneumonitis; [MSDSonline]
Biomedical References
Exposure Assessment
TIH
Yes
Dangerous When Wet
Yes
Vapor Pressure
15 mm Hg
Lethal Concentration
LC50 (mice) = 330 mg/m3/2h
Explanatory Notes
Not TIH in land-based spills, but TiH substance released when spilled in water; [ERG 2016]
NFPA
high ambient temp required
Adverse Effects
Toxic Pneumonitis
Yes
Dermatotoxin
Skin burns
Diseases, Processes, and Activities Linked to This Agent
Diseases
Occupational diseases associated with exposure to this agent:
Processes
Industrial Processes with risk of exposure: