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REACH

Trichloro(vinyl)silane

EC number: 200-917-8 | CAS number: 75-94-5

Life Cycle description
Uses advised against

Physical & Chemical properties

Vapour pressure

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Administrative data

Link to relevant study record(s)

Description of key information

Vapour pressure (substance): 8799 Pa at 25°C 
Vapour pressure (silanol hydrolysis product): 0.02 Pa at 20°C

Key value for chemical safety assessment

Additional information

A vapour pressure of 8799 Pa at 25°C was extrapolated using a temperature-vapour pressure correlation developed from data measured in the range 17 -61°C (DIPPR 2001). The result was found to be in reasonably good agreement with published measured data. It is selected as key study. A vapour pressure of 6637 Pa at 20°C was extrapolated from data measured in the range 37 - 65°C (Haas 1993). Three studies to which reliability could not be assigned gave values in the range 45 - 74 hPa at 20°C. Variations in the vapour pressure may be due to differences in the test method or test substance purity. The vapour pressure of the silanol hydrolysis product has been predicted to be 0.02 Pa at 20°C, using a validated QSAR prediction method. The result is considered to be reliable.

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