Registration Dossier

Data platform availability banner - registered substances factsheets

Please be aware that this old REACH registration data factsheet is no longer maintained; it remains frozen as of 19th May 2023.

The new ECHA CHEM database has been released by ECHA, and it now contains all REACH registration data. There are more details on the transition of ECHA's published data to ECHA CHEM here.

Diss Factsheets

Physical & Chemical properties

Vapour pressure

Currently viewing:

Administrative data

Link to relevant study record(s)

Reference
Endpoint:
vapour pressure
Type of information:
experimental study
Adequacy of study:
key study
Study period:
February 7, 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:
2.88 Pa
Key result
Temp.:
25 °C
Vapour pressure:
5.34 Pa

Vapour pressure of di(tert-butoxy)diacetoxysilane 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: 24.80, 28.50 and 33.20 ºC.

Conclusions:
The vapour pressure of di(tert-butoxy)diacetoxysilane was determined to be 2.88 Pa at 20ºC and 5.34 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 di(tert-butoxy)diacetoxysilane was determined to be 2.88 Pa at 20ºC and 5.34 at 25 ºC.

Description of key information

Key study: EU Method A.4. GLP study. The vapour pressure of di(tert-butoxy)diacetoxysilane was determined to be 2.88 Pa at 20ºC and 5.34 at 25 ºC.

Key value for chemical safety assessment

Vapour pressure:
2.88 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 di(tert-butoxy)diacetoxysilane was determined to be 2.88 Pa at 20ºC and 5.34 at 25 ºC.