Trichlorosilane

Trichlorosilane

Names
IUPAC name trichlorosilane
Other names silyl trichloride, silicochloroform
Identifiers
CAS Number	10025-78-2 Y
3D model (JSmol)	Interactive image
ChemSpider	23196 Y
ECHA InfoCard	100.030.026
EC Number	233-042-5
PubChem CID	24811
RTECS number	VV5950000
UNII	QZY2645L6V Y
UN number	1295
CompTox Dashboard (EPA)	DTXSID4029301
InChI InChI=1S/Cl3HSi/c1-4(2)3/h4H Y Key: ZDHXKXAHOVTTAH-UHFFFAOYSA-N Y InChI=1/Cl3HSi/c1-4(2)3/h4H Key: ZDHXKXAHOVTTAH-UHFFFAOYAH
SMILES Cl[SiH](Cl)Cl
Properties
Chemical formula	HCl3Si
Molar mass	135.45 g/mol
Appearance	colourless liquid
Density	1.342 g/cm3
Melting point	−126.6 °C (−195.9 °F; 146.6 K)
Boiling point	31.8 °C (89.2 °F; 304.9 K)
Solubility in water	hydrolysis
Hazards[1]
GHS labelling:
Pictograms
Signal word	Danger
Hazard statements	H224, H250, H302, H314, H332
Precautionary statements	P231, P280, P305+P351+P338+P310, P310, P370+P378
NFPA 704 (fire diamond)	3 4 2 W
Flash point	−27 °C (−17 °F; 246 K)
Autoignition temperature	185 °C (365 °F; 458 K)
Explosive limits	1.2–90.5%
Safety data sheet (SDS)	ICSC 0591
Related compounds
Related chlorosilanes	Chlorosilane Dichlorosilane Dichloromethylsilane Chlorodimethylsilane Silicon tetrachloride
Related compounds	Trifluorosilane Tribromosilane Chloroform
Except where otherwise noted, data are given for materials in their standard state (at 25 °C [77 °F], 100 kPa). N verify (what is YN ?) Infobox references

Trichlorosilane is an inorganic compound with the formula HCl₃Si. It is a colourless, volatile liquid. Purified trichlorosilane is the principal precursor to ultrapure silicon in the semiconductor industry. In water, it rapidly decomposes to produce a siloxane polymer while giving off hydrochloric acid. Because of its reactivity and wide availability, it is frequently used in the synthesis of silicon-containing organic compounds.^[2]