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Physical & Chemical properties

Vapour pressure

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Description of key information

Vapour pressure [3-(2,3-epoxypropoxy)propyl]dimethoxy(methyl)silane: 3.0 Pa at 25°C (QSAR)

Vapour pressure [3-(2,3-epoxypropoxy)propyl]methylsilanediol: 2.8E-04 Pa at 25°C (QSAR)

Vapour pressure [methanol]: 12790 Pa at 20°C

Key value for chemical safety assessment

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

Additional information

A predicted vapour pressure of 3.0 Pa at 25°C was determined for the substance using a validated QSAR estimation method. The result is considered to be reliable.

In contact with water, the substance hydrolyses rapidly to form [3-(2,3-epoxypropoxy)propyl]methylsilanediol and methanol.

The vapour pressure of the silanol hydrolysis product was estimated to be 2.8E-04 Pa at 25°C using the QSAR method.

Methanol has a reported vapour pressure of 12790 Pa at 25°C (OECD 2004).



OECD (2004): SIDS Initial Assessment Report for SIAM 19, Berlin, Germany, 18-20 October 2004, Methanol, CAS 67-56-1.