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Vapour pressure

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Description of key information

Vapour pressure [1,2-bis[dichloro(methyl)silyl]ethane]: 11 Pa at 25°C (QSAR)

Vapour pressure [1,2-bis[dihydroxy(methyl)silyl]ethane]: 0.000024 Pa at 25°C (QSAR)

Key value for chemical safety assessment

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

Additional information

A vapour pressure of 11 Pa at 25°C has been obtained for the substance using an appropriate QSAR method. The result is considered to be reliable and is selected as key data.

Two further studies are available. Vapour pressure values of 0.19 hPa at 20°C, 1.6 hPa at 50°C and 26 hPa at 100°C were determined in a reliable study conducted according to an appropriate test protocol. The study was not conducted according to GLP. This result supports the predicted value. In a further study, vapour pressure values of 4E-04 hPa at 20°C, 0.12 hPa at 50°C and 0.62 hPa at 60°C were calculated from a reliable study conducted according to an appropriate test protocol. The study was not conducted according to GLP.

The vapour pressure of the silanol hydrolysis product was estimated to be 2.4E-05 Pa at 25°C using the QSAR method.