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Please be aware that this old REACH registration data factsheet is no longer maintained; it remains frozen as of 19th May 2023.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

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Administrative data

Link to relevant study record(s)

Description of key information

<< 0.1 kPa at 20°C

Key value for chemical safety assessment

Additional information

For complex substances the vapour pressure is the sum of the partial pressure of the individual constituents (Raoult’s Law). Based on the molecular weight, viscosity and boiling point, bitumens are expected to have low vapour pressures (<< 0.1 kPa at 20°C) at ambient temperature (CONCAWE, 1992a).