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Please be aware that this old REACH registration data factsheet is no longer maintained; it remains frozen as of 19th May 2023.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

The vapour pressure of alkenes C24 - C28 is < 1.0 mbar at 20°C

Key value for chemical safety assessment

Additional information

A single proprietaty study is available for this endpoint (Chilworth Technology Ltd, 2010). The vapour pressure was assessed in a static test with a U-tube manometer. The result of this study (the average of extrapolated 20 °C results from two seperate runs covering multiple temperatures of 73.6 °C and above) was used as the final result.