Trichlorosilane

Modify Date: 2025-08-19 21:58:47

Trichlorosilane structure	Common Name	Trichlorosilane
	CAS Number	10025-78-2	Molecular Weight	135.452
	Density	1.342 g/mL at 25 °C(lit.)	Boiling Point	31.8±9.0 °C at 760 mmHg
	Molecular Formula	Cl₃HSi	Melting Point	-127 °C
	MSDS	Chinese USA	Flash Point	7 °F
	Symbol	GHS02, GHS05, GHS07	Signal Word	Danger

Name	Trichlorosilane
Synonym	More Synonyms

Density	1.342 g/mL at 25 °C(lit.)
Boiling Point	31.8±9.0 °C at 760 mmHg
Melting Point	-127 °C
Molecular Formula	Cl₃HSi
Molecular Weight	135.452
Flash Point	7 °F
Exact Mass	133.891312
LogP	4.77
Vapour density	1 (vs air)
Vapour Pressure	595.7±0.1 mmHg at 25°C
Index of Refraction	1.4-1.402
Stability	Stable, but extremely flammable. Pyrophoric - spontaneously ignites in air. Explosion hazard in air - note wide explosion limits. Reacts violently with water. Incompatible with moisture, acids, bases, strong oxidizing agents, alcohols, amines.
Water Solubility	decomposes

Trichlorosilane MSDS(Chinese)

CHEMICAL IDENTIFICATION

RTECS NUMBER :: VV5950000

CHEMICAL NAME :: Silane, trichloro-

CAS REGISTRY NUMBER :: 10025-78-2

LAST UPDATED :: 199710

DATA ITEMS CITED :: 7

MOLECULAR FORMULA :: Cl3-H-Si

MOLECULAR WEIGHT :: 135.45

WISWESSER LINE NOTATION :: G-SI-HGG

HEALTH HAZARD DATA

ACUTE TOXICITY DATA

TYPE OF TEST :: LD50 - Lethal dose, 50 percent kill

ROUTE OF EXPOSURE :: Oral

SPECIES OBSERVED :: Rodent - rat

DOSE/DURATION :: 1030 mg/kg

TOXIC EFFECTS :: Details of toxic effects not reported other than lethal dose value

REFERENCE :: JIHTAB Journal of Industrial Hygiene and Toxicology. (Cambridge, MA) V.18-31, 1936-49. For publisher information, see AEHLAU. Volume(issue)/page/year: 31,60,1949

TYPE OF TEST :: LCLo - Lowest published lethal concentration

ROUTE OF EXPOSURE :: Inhalation

SPECIES OBSERVED :: Rodent - rat

DOSE/DURATION :: 500 ppm/4H

TOXIC EFFECTS :: Details of toxic effects not reported other than lethal dose value

REFERENCE :: UCDS** Union Carbide Data Sheet. (Union Carbide Corp., 39 Old Ridgebury Rd., Danbury, CT 06817) Volume(issue)/page/year: 2/21/1979

TYPE OF TEST :: LC50 - Lethal concentration, 50 percent kill

ROUTE OF EXPOSURE :: Inhalation

SPECIES OBSERVED :: Rodent - mouse

DOSE/DURATION :: 1500 mg/m3/2H

TOXIC EFFECTS :: Details of toxic effects not reported other than lethal dose value

REFERENCE :: 85GMAT "Toxicometric Parameters of Industrial Toxic Chemicals Under Single Exposure," Izmerov, N.F., et al., Moscow, Centre of International Projects, GKNT, 1982 Volume(issue)/page/year: -,114,1982

TYPE OF TEST :: LC50 - Lethal concentration, 50 percent kill

ROUTE OF EXPOSURE :: Inhalation

SPECIES OBSERVED :: Mammal - species unspecified

DOSE/DURATION :: 1 gm/m3

TOXIC EFFECTS :: Lungs, Thorax, or Respiration - acute pulmonary edema Liver - fatty liver degeneration Blood - other changes

REFERENCE :: TPKVAL Toksikologiya Novykh Promyshlennykh Khimicheskikh Veshchestv. Toxicology of New Industrial Chemical Substances. For English translation, see TNICS*. (Izdatel'stvo Meditsina, Moscow, USSR) No.1- 1961- Volume(issue)/page/year: 3,81,1961 *** NIOSH STANDARDS DEVELOPMENT AND SURVEILLANCE DATA *** NIOSH OCCUPATIONAL EXPOSURE SURVEY DATA : NOES - National Occupational Exposure Survey (1983) NOES Hazard Code - X3556 No. of Facilities: 23 (estimated) No. of Industries: 3 No. of Occupations: 4 No. of Employees: 2201 (estimated) No. of Female Employees: 267 (estimated)

Symbol	GHS02, GHS05, GHS07
Signal Word	Danger
Hazard Statements	H224-H250-H302 + H332-H314
Supplemental HS	Contact with water liberates toxic gas., Reacts violently with water.
Precautionary Statements	P210-P280-P303 + P361 + P353-P305 + P351 + P338-P370 + P378-P422
Personal Protective Equipment	Faceshields;full-face respirator (US);Gloves;Goggles;multi-purpose combination respirator cartridge (US)
Hazard Codes	F+:Highlyflammable;C:Corrosive;
Risk Phrases	R12;R14;R17;R20/22;R29;R35
Safety Phrases	S16-S26-S36/37/39-S43-S45-S7/9-S43A
RIDADR	UN 1295 4.3/PG 1
WGK Germany	1
RTECS	VV5950000
Packaging Group	I
Hazard Class	4.3

Precursor 10
CAS#:10026-04-7 Tetrachlorosilane CAS#:115-21-9 Trichloro(ethyl... CAS#:141-57-1 Trichloropropyl... CAS#:75-79-6 Methyltrichloro...
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CAS#:75-54-7 methyl dichloro... CAS#:115-10-6 dimethyl ether
DownStream 10
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CAS#:14986-21-1 Hexachlorodisiloxane CAS#:56240-62-1 trichloro(dichl... CAS#:7647-01-0 Hydrochloric acid CAS#:10026-04-7 Tetrachlorosilane
CAS#:7664-39-3 HYDROFLUORIC ACID CAS#:18356-71-3 dichloro(difluo...

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Shanghai Nianxing Industrial Co., Ltd
China
Product Name: Trichlorosilane
Price: Check
Purity: 99.7%
Delivery: 10 Day
Contact: Yang
Email: sales@echemcloud.com

Shanghai Jizhi Biochemical Technology Co., Ltd
China
Product Name: Trichlorosilane
Price: ￥108.0/25g ￥1258.0/500g ￥418.0/100g
Purity: 99.0%
Delivery: Inquiry
Contact: Liu jia
Email: 2130147988@qq.com

Dayang Chem (Hangzhou) Co., Ltd.
China
Product Name: Trichlorosilane
Price: $Inquiry/100g $Inquiry/1kg $Inquiry/100kg $Inquiry/1000kg
Purity: 98.0%
Delivery: Inquiry
Contact: Ms Wang
Email: enquiry@dycnchem.com

Henan Tianfu Chemical Co., Ltd.
China
Product Name: Trichlorosilane
Price: $Inquiry/1kg $Inquiry/25kg $Inquiry/1000kg $Inquiry/10ton
Purity: 99.0%
Delivery: Inquiry
Contact: Anson
Email: info@tianfuchem.com

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Trichlorosilane

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