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Names | |||
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Preferred IUPAC name
Chlorotri(methyl)silane | |||
Other names
Trimethylsilyl chloride
Chlorotrimethylsilane TMSCl Trimethylchlorosilane TMCS | |||
Identifiers | |||
3D model (JSmol)
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ChemSpider | |||
ECHA InfoCard | 100.000.819 | ||
EC Number |
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PubChem CID
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RTECS number |
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UNII | |||
UN number | 1298 | ||
CompTox Dashboard (EPA)
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Properties | |||
C3H9SiCl | |||
Molar mass | 108.64 g/mol | ||
Appearance | Colorless liquid, fumes in moist air | ||
Density | 0.856 g/cm3, liquid | ||
Melting point | −40 °C (−40 °F; 233 K) | ||
Boiling point | 57 °C (135 °F; 330 K) | ||
Reacts | |||
−77.36·10−6 cm3/mol | |||
Structure | |||
Tetrahedral at Si | |||
Hazards | |||
GHS labelling: | |||
Danger | |||
H225, H301, H312, H314, H331, H351 | |||
P201, P202, P210, P233, P240, P241, P242, P243, P260, P261, P264, P270, P271, P280, P281, P301+P310, P301+P330+P331, P302+P352, P303+P361+P353, P304+P340, P305+P351+P338, P308+P313, P310, P311, P312, P321, P322, P330, P363, P370+P378, P403+P233, P403+P235, P405, P501 | |||
NFPA 704 (fire diamond) | |||
Flash point | −28 °C (−18 °F; 245 K) | ||
400 °C (752 °F; 673 K) | |||
Related compounds | |||
Related halosilanes
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Trimethylsilyl fluoride Trimethylsilyl bromide Trimethylsilyl iodide | ||
Except where otherwise noted, data are given for materials in their standard state (at 25 °C [77 °F], 100 kPa).
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Trimethylsilyl chloride, also known as chlorotrimethylsilane is an organosilicon compound (silyl halide), with the formula (CH3)3SiCl, often abbreviated Me3SiCl or TMSCl. It is a colourless volatile liquid that is stable in the absence of water. It is widely used in organic chemistry.