Registration Dossier
Registration Dossier
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EC number: 219-137-4 | CAS number: 2370-88-9
Vapour pressure
Administrative data
Link to relevant study record(s)
Description of key information
Vapour pressure: 479 Pa at 20°C (2,4,6,8-tetramethylcyclotetrasiloxane)
Vapour pressure: 0.05 Pa at 20°C (methylsilanetriol)
Key value for chemical safety assessment
- Vapour pressure:
- 479 Pa
- at the temperature of:
- 20 °C
Additional information
An appropriate and validated QSAR model has been applied. A value of 479 Pa has been predicted at 20°C, this result is considered reliable and has been chosen as the key study. One measured value is available, from a study to which reliability could not be assigned, of 7.02 mm Hg at 20°C (930 Pa). This value is in satisfactory agreement with the key value.
The vapour pressure of the final hydrolysis product methylsilanetriol has been calculated using the same QSAR method.
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