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Physical & Chemical properties

Vapour pressure

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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.