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Physical & Chemical properties

Vapour pressure

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vapour pressure
Type of information:
other: Expert judgement based on QSAR
Adequacy of study:
key study
2 (reliable with restrictions)
Rationale for reliability incl. deficiencies:
accepted calculation method
Principles of method if other than guideline:
Estimation by MPBPVP v1.43 tool as implented by EPI Suite v4.11
Type of method:
other: estimate
25 °C
Vapour pressure:
0 Pa
Remarks on result:
other: MPBPVP v1.43
Estimated vapour pressure at 25 °C is negligible.
Executive summary:


Vapour pressure was estimated by MPBPVP v4.13 tool as implemented in EPI Suite v4.11.


Based on the modifed Grain method, vapour pressure resulted to be negligible at 25 °C, i.e. 2.65E-31 Pa.

Description of key information


Key value for chemical safety assessment

Additional information

Based on the OECD Guideline 104, the calculated values of the vapour pressure can be used:

- for deciding which of the experimental methods is appropriate,

- for providing an estimate or limit value in cases where the experimental method cannot be applied due to technical reasons (including where the vapour pressure is very low, e.g., less than 10-3 Pa).

Based on a vapour pressure predicted to be negligible at 25 °C, i.e. 2.65E-31 Pa, no experimental study was carried out as no experimental method was considered as appropriate to measure the vapour pressure of test substance.