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Physical & Chemical properties

Vapour pressure

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Description of key information

Under the conditions of this study, the vapour pressure of the test material was determined to be 0.018 Pa at 25 °C. 

Key value for chemical safety assessment

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

Additional information

The key study was conducted in line with GLP and the standardised guidelines OECD 104 and EU Method A.4. It was assigned a reliability score of 1 in accordance with the criteria detailed by Klimisch (1997).

The vapour pressure of the test material was determined using the vapour pressure balance method.

A sequence of runs was started after a sample of test material had been under vacuum for approximately 20.25 hours. Temperature and pressure readings were taken between 30 and 40 °C with a one hour dwell at 30 °C between runs. The vapour pressure of the sample was measured over a range of temperatures to enable extrapolation to 298.15 K. The data from 6 runs was used to calculate an average value.

Under the conditions of this study, the vapour pressure of the test material was determined to be 1.8 x 10-2 Pa at 25 °C.