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Physical & Chemical properties

Vapour pressure

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vapour pressure
Type of information:
experimental study
Adequacy of study:
key study
Study period:
Experimental phase: 11 April 2018. Report issued: 14 June 2018.
1 (reliable without restriction)
Rationale for reliability incl. deficiencies:
guideline study
according to guideline
EU Method A.4 (Vapour Pressure)
GLP compliance:
yes (incl. QA statement)
Type of method:
Key result
25 °C
Vapour pressure:
336 Pa

A summary of the vapour pressure results from each run is presented in the table below:

 Run  Log10[VP (25°C)]
 1  2.51
 2  2.55
 3  2.52
 Mean  2.53
 Vapour Pressure  336 Pa

The test substance did not undergo any change in appearance under the conditions used in the determination.

The vapour pressure of the test substance has been determined to be 336 Pa at 25 ºC.
Executive summary:


The vapour pressure of the test substance was determined using a method designed to be compatible with Method A.4 Vapour Pressure of Commission Regulation (EC) No 440/2008 of 30 May 2008 and Method 104 of the OECD Guidelines for Testing of Chemicals, 23 March 2006.


The vapor pressure was determined using an isoteniscope system in which the sample's vapor pressure was measured using a mercury-in-glass manometer. The temperature of the sample was regulated by use of a silicone oil bath. Three separate runs were undertaken and the vapour presure calculated as the mean of the three results.

Results and Conclusion

The vapour pressure of the test substance has been determined to be 336 Pa at 25 ºC.

Description of key information

Vapour pressure of the test substance.

Key value for chemical safety assessment

Vapour pressure:
336 Pa
at the temperature of:
25 °C

Additional information