chlorotrimethylsilane

CAS No. 75-77-4

Formula: C3H9ClSi
Basic Info

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.

Formula
C3H9ClSi
Molecular Weight
108.642
Exact Mass
108.016
LogP
2.0601
PSA
0
Synonyms

Silane, chlorotrimethyl-

chloro(trimethyl)silane

Chlorotrimethylsilane

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Properties
Appearance & Physical State
colourless liquid
Density
0.856
Boiling Point
57ºC
Melting Point
-58ºC
Flash Point
-18ºC
Refractive Index
1.387-1.389
Water Solubility
REACTS
Stability
Stable. Highly flammable - note low flash point. Reacts violently with water. Incompatible with water, moisture, strong oxidizing agents, strong acids, strong bases, aldehydes, alcohols, amines, esters, ketones.
Storage Condition
Store at RT.
Vapor Density
3.7 (vs air)
Vapor Pressure
100 mm Hg ( 25 °C)
Safety Info
RTECS
VV2710000
Safety Statements
S16-S26-S36/37/39-S45
WGK Germany
2
Risk Statements
R11; R14; R21; R34
HS Code
29310095
RIDADR
UN 1298
Hazard Class
3
Packing Group
II
Caution Statement
P210; P260; P280; P305 + P351 + P338; P370 + P378; P403 + P235
Hazard Codes
Spectrum
NMR Spectrum 1H NMR : 90 MHz in CDCl3
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IR Spectrum IR : liquid film
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Mass Spectrum Mass
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Analysis Methods
Kovats' RI, non-polar column, isothermal
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Column Shape
Packed
Active Phase(℃)
SE-30
Retention index
555.
Temperature Control
100.
Method
isothermal
Comments
Ar; Column length: 1. m
Reference
Kirichenko, É.A.Markov, B.A.Kochetov, V.A.Kuznetsova, T.I.Chromatographic retention indices of alkylchlorosilanesZh. Anal. Khim.1975, 30, 6, 1038-1040.
Kovats' RI, non-polar column, isothermal
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Column Shape
Packed
Active Phase(℃)
SE-30
Retention index
552.
Temperature Control
70.
Method
isothermal
Comments
Ar; Column length: 1. m
Reference
Kirichenko, É.A.Markov, B.A.Kochetov, V.A.Kuznetsova, T.I.Chromatographic retention indices of alkylchlorosilanesZh. Anal. Khim.1975, 30, 6, 1038-1040.
Kovats' RI, non-polar column, isothermal
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Column Shape
Packed
Active Phase(℃)
Polymethylsiloxane, (PMS-20000)
Retention index
552.4
Temperature Control
50.
Method
isothermal
Comments
He, Chromosorb W; Column length: 2. m
Reference
Ainshtein, A.A.Shulyatieva, T.I.Retention indices of alkyl- and arylchlorosilanesZh. Anal. Khim.1972, 27, 816-821.
Kovats' RI, non-polar column, isothermal
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Column Shape
Packed
Active Phase(℃)
SE-30
Retention index
553.
Temperature Control
40.
Method
isothermal
Comments
N2, Chromosorb W; Column length: 2. m
Reference
Garzó, G.Fekete, J.Blazsó, M.Determination of the gas chromatographic retention indices of various organometallic compoundsActa Chim. Acad. Sci. Hung.1967, 51, 4, 359-369.
Normal alkane RI, non-polar column, temperature ramp
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Column Shape
Capillary
Active Phase(℃)
OV-101
Retention index
560.
Temperature Control
Method
temperature ramp
Comments
25. m/0.20 mm/0.10 μm, N2/He, 6. K/min; T<sub>start</sub>: 50. C; T<sub>end</sub>: 250. C
Reference
Zenkevich, I.G.Experimentally measured retention indices.2005.

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