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Physical & Chemical properties

Vapour pressure

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Reference
Endpoint:
vapour pressure
Type of information:
experimental study
Adequacy of study:
key study
Study period:
February 5, 2012.
Reliability:
1 (reliable without restriction)
Rationale for reliability incl. deficiencies:
guideline study
Remarks:
According to EU Method A.4. GLP Study.
Qualifier:
according to guideline
Guideline:
EU Method A.4 (Vapour Pressure)
Deviations:
no
Qualifier:
according to guideline
Guideline:
OECD Guideline 104 (Vapour Pressure Curve)
Deviations:
no
GLP compliance:
yes (incl. QA statement)
Type of method:
effusion method: Knudsen cell
Key result
Temp.:
20 °C
Vapour pressure:
1.47 Pa
Key result
Temp.:
25 °C
Vapour pressure:
2.95 Pa

Vapour pressure of vinyltriacetoxysilane at 20 ºC and 25 ºC was calculated on the basis of equation log (P) = f (1/t) = a-b/(t+273.15) where, P – vapour pressure in Pa, t – temperature in ºC, obtained for three measurement points: 25.00, 28.20 and 33.7 ºC.

Conclusions:
The vapour pressure of vinyltriacetoxysialene was determined to be 1.47 Pa at 20ºC and 2.95 at 25 ºC.
Executive summary:

The study of vapour pressure using effusion method was performed in accordance with EU Method A.4 (based on the method OECD 104). The vapour pressure of vinyltriacetoxysialene was determined to be 1.47 Pa at 20ºC and 2.95 at 25 ºC.

Description of key information

Key study: EU Method A.4. GLP study. The vapour pressure of vinyltriacetoxysialene was determined to be 1.47 Pa at 20ºC and 2.95 at 25 ºC.

Key value for chemical safety assessment

Vapour pressure:
1.47 Pa
at the temperature of:
20 °C

Additional information

Key study: The study of vapour pressure using effusion method was performed in accordance with EU Method A.4 (based on the method OECD 104). The vapour pressure of vinyltriacetoxysialene was determined to be 1.47 Pa at 20ºC and 2.95 at 25 ºC.