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Please be aware that this old REACH registration data factsheet is no longer maintained; it remains frozen as of 19th May 2023.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 vapor pressure of dipropylene glycol n-butyl ether was measured from 10 to 500 mmHg using the dynamic twin ebulliometer technique using diphenyl oxide as the reference substance. The experimental data were correlated with the Antoine equation. The vapor pressure of dipropylene glycol n-butyl ether is 64.3 °C at 1 mmHg and 104.8 °C at 10 mmHg. The normal boiling point of dipropylene glycol n-butyl ether is determined to be 230 °C at 760 mmHg.

Key value for chemical safety assessment

Vapour pressure:
4 Pa
at the temperature of:
293.15 K

Additional information

The calculated vaporization data for dipropylene glycol n-butyl ether are 4.0 Pa at 20 °C and 6.3 Pa at 25 °C.