Trimethylsilyl chloride

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Trimethylsilyl chloride
TMSCl
Ball-and-stick model of the trimethylsilyl chloride molecule
Ball-and-stick model of the trimethylsilyl chloride molecule
Space-filling model of the trimethylsilyl chloride molecule
Space-filling model of the trimethylsilyl chloride molecule
Names
Preferred IUPAC name
Chlorotri(methyl)silane
Other names
Trimethylsilyl chloride
Chlorotrimethylsilane
TMSCl
Trimethylchlorosilane
TMCS
Identifiers
3D model (JSmol)
ChemSpider
ECHA InfoCard 100.000.819 Edit this at Wikidata
EC Number
  • 200-900-5
RTECS number
  • VV2710000
UNII
UN number 1298
  • InChI=1S/C3H9ClSi/c1-5(2,3)4/h1-3H3 checkY
    Key: IJOOHPMOJXWVHK-UHFFFAOYSA-N checkY
  • C[Si](C)(C)Cl
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:
GHS02: FlammableGHS05: CorrosiveGHS06: ToxicGHS07: Exclamation markGHS08: Health hazard
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)
NFPA 704 four-colored diamondHealth 3: Short exposure could cause serious temporary or residual injury. E.g. chlorine gasFlammability 3: Liquids and solids that can be ignited under almost all ambient temperature conditions. Flash point between 23 and 38 °C (73 and 100 °F). E.g. gasolineInstability 2: Undergoes violent chemical change at elevated temperatures and pressures, reacts violently with water, or may form explosive mixtures with water. E.g. white phosphorusSpecial hazard W: Reacts with water in an unusual or dangerous manner. E.g. sodium, sulfuric acid
3
3
2
W
Flash point −28 °C (−18 °F; 245 K)
400 °C (752 °F; 673 K)
Related compounds
Related halosilanes
 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.