Methyltriacetoxysilane
Agent Name
Methyltriacetoxysilane
CAS Number
4253-34-3
Formula
C7-H12-O6-Si
Major Category
Metals
Synonyms
APK 1 (silane derivative); K 10S; Methylsilanetriol triacetate; Methyltrihydroxysilane triacetate; Silane, methyltriacetoxy-; Triacetoxymethylsilane; Methylsilanetriyl triacetate; Silanetriol, 1-methyl-, 1,1,1-triacetate; Silanetriol, methyl-, triacetate; [ChemIDplus] Triacetoxy(methylsilane); [Alfa Aesar MSDS]
Category
Metalloid Compounds (Silicon)
Description
Solid; [Alfa Aesar MSDS]
Sources/Uses
Used as a cross-linker for silicone sealants and adhesives (completely reacts during curing); [OECD SIDS: Methyltriacetoxysilane - 2005]
Comments
Causes severe irritation and burns to skin and eyes in rabbits; Rapidly hydrolyzed by moisture/water forming acetic acid and the corresponding trisilanols (observed toxicity attributed to acetic acid); [OECD SIDS: Methyltriacetoxysilane - 2005] An irritant; Harmful by ingestion; [Alfa Aesar MSDS] See "Acetic acid." See "Ethyltriacetoxysilane."
Biomedical References
Exposure Assessment
Vapor Pressure
0.2 mm Hg
Adverse Effects
Dermatotoxin
Skin burns
Diseases, Processes, and Activities Linked to This Agent
Processes
Industrial Processes with risk of exposure: