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Please be aware that this old REACH registration data factsheet is no longer maintained; it remains frozen as of 19th May 2023.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

The vapour pressure of 2,4,4-trimethylpentene is 5.8 kPa at 25°C.

Key value for chemical safety assessment

Vapour pressure:
5.8 kPa
at the temperature of:
25 °C

Additional information

The study by Shell Research Ltd. (1996) was conducted to a standard guideline and was GLP compliant. This result is supported by data from the CRC Handbook (Lide 2008), which gives a vapour pressure of 10 kPa at 43.8°C.