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Physical & Chemical properties

Vapour pressure

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Description of key information

The vapour pressure of cyclohexane is 124 hPa at 24˚C.

Key value for chemical safety assessment

Vapour pressure:
124 hPa
at the temperature of:
24 °C

Additional information

The Handbook of vapour pressures and heats of vaporisation of hydrocarbons and related compounds by Zwolinski, B.J. and Wilhoit, R.C. (1971) is a peer reviewed handbook and so can be considered reliable and suitable for use as the key study for this endpoint. The supporting study (WHO ICSC 1994) is also a peer reviewed source and reports a vapour pressure of 12.7 kPa (127 hPa) at 20 ˚C and supports the value reported in the key study. A similar result was also reported in the EU RAR (2004) but for a lower temperature of 10,300 Pa at 20 ˚C (103 hPa).