Trichlorosilane

Modify Date: 2024-01-02 18:37:38

Trichlorosilane Structure
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
GHS02, GHS05, GHS07		 Signal Word Danger

 Names

Name Trichlorosilane
Synonym More Synonyms

 Chemical & Physical Properties

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

 Toxicological Information

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)

 Safety Information

Symbol GHS02 GHS05 GHS07
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

 Synthetic Route

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 Synonyms

trichlorohydrosilane
Trichlorosilane
UNII-QZY2645L6V
Silicochloroform
Silane,trichloro
trichlorosilyl hydride
tri-chlorosilane
silici-chloroforme
silanea-19
EINECS 233-042-5
siliciumchloroform
silane, trichloro
MFCD00011518
Silane, trichloro-
trichlorsilan
triclorosilano
trichloro-silan
trichloorsilaan
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