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Vapour pressure

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Description of key information

Vapour pressure (decamethyltetrasiloxane): 73 Pa at 25°C (OECD 104)

Key value for chemical safety assessment

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

Additional information

A measured vapour pressure of 52 Pa and 73 Pa at 20°C and 25°C were determined for the substance using an appropriate test method. The result is considered reliable and selected as key study. This value is supported by a predicted vapour pressure of 42 Pa at 25°C which was determined for the substance using a validated QSAR estimation method. In other secondary source to which no reliability could be assigned, a vapour pressure of 57 Pa at 25°C was reported for the substance. The supporting studies are in good agreement with the key study.