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Physical & Chemical properties

Vapour pressure

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Description of key information

The vapour pressure of the test material has been determined to be 0.513 Pa at 25 °C. 

Key value for chemical safety assessment

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

Additional information

The vapour pressure of the test material was investigated in accordance with the standardised guidelines OECD 104 and EU Method A.4 under GLP conditions.

The method selected for the determination was the vapour pressure balance method. A preliminary run was undertaken over the temperature range 20 to 124 °C to provide information for a suitable temperature range for the determination. A sequence of runs was started after a sample of the test material had been under vacuum for approximately 44.25 hours.

The final 5 of 10 runs were deemed to have taken place after the test system had reached equilibrium with regard to the vapour pressure and the result of these were therefore used to determine the definitive vapour pressure of the test material.

Under the conditions of this study, the test material was found to have a vapour pressure of 0.0513 Pa at 25 °C.