Phenyltrichlorosilane manufacturers and suppliers

Phenyltrichlorosilane suppliers

Properties

Melting point:: -127°C

Boiling point:: 201 °C(lit.)

Density: 1.321 g/mL at 25 °C(lit.)

vapor pressure: 44.3Pa at 20℃

refractive index: n20/D 1.523(lit.)

Flash point:: 196 °F

solubility: soluble in Chloroform,Benzene,Ether

form: liquid

Specific Gravity: 1.324

color: colorless

explosive limit: 1.6-9.2%(V)

Water Solubility: reacts

Sensitive: Moisture Sensitive

Hydrolytic Sensitivity: 8: reacts rapidly with moisture, water, protic solvents

BRN: 508730

InChIKey: ORVMIVQULIKXCP-UHFFFAOYSA-N

Safety Information

Symbol(GHS): GHS05,GHS07

Signal word: Danger

Hazard statements: H312-H314

Precautionary statements: P280-P303+P361+P353-P304+P340+P310-P305+P351+P338-P362+P364-P405

Hazard Codes: T,C,T+

Risk Statements: 21/22-23-34-21-37-35-26-14

Safety Statements: 23-26-36/37/39-45-28

RIDADR: UN 1804 8/PG 2

WGK Germany: 1

RTECS: VV6650000

F: 10-21

TSCA: Yes

HazardClass: 8

PackingGroup: II

HS Code: 29319019

Toxicity: LD50 orl-rat: 2390 mg/kg AMIHBC 10,61,54

Use

The high-temperature condensation (HTC) technique proved to be very convenient and economical for the production of phenyltrichlorosilane and in recent years has become one of the main industrial techniques for its synthesis. The synthesis of phenyltrichlorosilane by HTC technique is conducted according to the reaction: HSiCI3 + C6H5CI （HCI） C6H5SiCI3 In this case, similarly to the vinyltrichlorosilane case, in the conditions of synthesis (600-640 C) there is a secondary reaction of reduction, which forms silicon tetrachloride and benzene. However, if the process is conducted in the presence of an initiator (5% of diazomethane), it is possible to reduce the temperature down to 500-550 C. Then the secondary reaction proceeds very slowly, which increases the yield of phenyltrichlorosilane by 1.5 times. To suppress the reduction process, one can also add benzene and silicon tetrachloride into the reactive mixture. It is also possible to boost the yield of phenyltrichlorosilane and increase the degree of the chlorobenzene transformation by using two subsequent reactors.

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