Registration Dossier
Registration Dossier
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EC number: 288-657-1 | CAS number: 85857-16-5
Vapour pressure
Administrative data
Link to relevant study record(s)
Description of key information
Vapour pressure [2-(perfluorohexyl)ethyl]trimethoxysilane]: 13 Pa at 25°C (QSAR)
Vapour pressure [2-(perfluorohexyl)ethyl]silanetriol]: 6.9E-03 Pa at 25°C (QSAR)
Vapour pressure [methanol]: 12790 Pa at 20°C
Key value for chemical safety assessment
- Vapour pressure:
- 13 Pa
- at the temperature of:
- 25 °C
Additional information
A vapour pressure value of 13 Pa 25°C was determined for [2-(perfluorohexyl)ethyl]trimethoxysilane using a validated QSAR estimation method. The result is considered to be reliable.
Under dilute conditions in water, the submission substance hydrolyses rapidly to form [2-(perfluorohexyl)ethyl]silanetriol and methanol. The vapour pressure of the silanol hydrolysis product was predicted to be 6.9E-03 Pa at 25°C using a validated QSAR estimation method.
A measured vapour pressure of 12790 Pa at 20°C is available for methanol (OECD 2004).
OECD (2004): SIDS Initial Assessment Report for SIAM 19, Berlin, Germany, 18-20 October 2004, Methanol, CAS 67-56-1.
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