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Vapour pressure

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Reference
Endpoint:
vapour pressure
Type of information:
experimental study
Adequacy of study:
key study
Study period:
From 23 February 2016 to 08 March 2016
Reliability:
1 (reliable without restriction)
Rationale for reliability incl. deficiencies:
guideline study
Qualifier:
according to
Guideline:
OECD Guideline 104 (Vapour Pressure Curve)
Deviations:
no
Qualifier:
according to
Guideline:
EU Method A.4 (Vapour Pressure)
Deviations:
no
GLP compliance:
yes (incl. certificate)
Type of method:
effusion method: Knudsen cell
Specific details on test material used for the study:
- Analytical purity: 92%
- Expiration date of the lot/batch: 13.10.2017
Key result
Test no.:
#1
Temp.:
ca. 20 °C
Vapour pressure:
ca. 0.005 Pa
Key result
Test no.:
#2
Temp.:
ca. 25 °C
Vapour pressure:
ca. 0.01 Pa

The determined vapour pressure was:

Test sample

Vapour pressure

at 20ºC[Pa]

Vapour pressure

at 25ºC[Pa]

 

Propionic acid, 2,2' ,2''-[(vinylsilylidyne) trioxy] tri-, triethyl ester

5.03·10-03

 

1.01·10-02

Conclusions:
The vapour pressure of the test substance is 5.03*10E-03 Pa at 20ºC and 1.01*10E-02 Pa at 25ºC.
Executive summary:

The aim of this study was the determination of the vapour pressure of the test substance according to the OECD Guideline 104 with GLP. The method for analysis was the effusion method: Knudsen cell and the apparatus. This parameter was determined at 20ºC and 25ºC. The vapour pressure of the test substance was 5.03*10E-03 Pa at 20ºC and 1.01*10E-02 Pa at 25ºC under the specified conditions.

Description of key information

Key study: According the OECD Guideline 104. GLP study. The vapour pressure of the test substance is 5.03*10E-03 Pa at 20ºC and 1.01*10E-02 Pa at 25ºC.

Key value for chemical safety assessment

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

Additional information