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Please be aware that this old REACH registration data factsheet is no longer maintained; it remains frozen as of 19th May 2023.

The new ECHA CHEM database has been released by ECHA, and it now contains all REACH registration data. There are more details on the transition of ECHA's published data to ECHA CHEM here.

Diss Factsheets

Physical & Chemical properties

Vapour pressure

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Description of key information

Vapour pressure [3,3-bis[(dimethylvinylsilyl)oxy]-1,1,5,5-tetramethyl-1,5-divinyltrisiloxane]: <10 Pa at 25 - 101°C (OECD 104)

Key value for chemical safety assessment

Vapour pressure:
10 Pa
at the temperature of:
25 °C

Additional information

A measured vapour pressure of <10 Pa at 25 - 101°C was determined for the substance using the static method in accordance with OECD 104 and in compliance with GLP. The result is considered to be reliable and selected as key study. This value is supported by a predicted vapour pressure of 0.22 Pa at 25°C which was determined using a validated QSAR estimation method. The supporting data are in agreement with the key data that the substance is a very low volatility substance.