Diacetoxydi-tert-butoxysilane

Vapour pressure

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.