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Physical & Chemical properties

Vapour pressure

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Description of key information

QSAR estimations on the vapour pressures of the 3 main constituents of 1,4-benzenediamine, N,N'-mixed phenyl and tolyl derivatives indicate that the the test substance has a very low vapour pressure.

Key value for chemical safety assessment

Vapour pressure:
0 Pa
at the temperature of:
25 °C

Additional information

Estimated vapour pressures for the 3 main constituents of 1,4-benzenediamine, N,N'-mixed phenyl and tolyl derivatives were in the range of 10 -7 to 10 -8 hPa at 25°C. The reported value, 4.05 E-05 Pa, is an average of the 3 reported vapour pressures.