Registration Dossier
Registration Dossier
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EC number: 274-092-8 | CAS number: 69709-01-9
Vapour pressure
Administrative data
Link to relevant study record(s)
Description of key information
Vapour pressure [ 1,1,3,3-tetramethyl-2-[3-(trimethoxysilyl)propyl]guanidine]: 9.9E-02 Pa at 25°C (QSAR)
Vapour pressure [
1,1,3,3-tetramethyl-2-[3-(trihydroxysilyl)propyl]guanidine]:
1.6E-06 Pa at 25°C (QSAR)
Vapour pressure [methanol]:
12790 Pa at 20°C
Key value for chemical safety assessment
- Vapour pressure:
- 0.099 Pa
- at the temperature of:
- 25 °C
Additional information
A predicted vapour pressure of 9.9E-02 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 1,1,3,3-tetramethyl-2-[3-(trihydroxysilyl)propyl]guanidine and methanol.
The vapour pressure of the silanol hydrolysis product, 1,1,3,3-tetramethyl-2-[3-(trihydroxysilyl)propyl]guanidine has been predicted to be 1.6E-06 Pa at 25°C using the same validated QSAR method.
A vapour pressure of 12790 Pa at 20°C is reported for methanol (OECD 2004).
Reference:
OECD (2004): SIDS Initial Assessment Report for SIAM 19, Berlin, Germany, 18-20 October 2004, Methanol, CAS 67-56-1.
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