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Vapour pressure

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Description of key information

Vapor Pressure: 3.44 Pa at 25 °C, EU Method A.4, Harlan Laboratories Ltd. 2013

Key value for chemical safety assessment

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

Additional information

The vapour pressure was determined using EU Method A.4 using the gas saturation method. To ensure saturation control, three different flow rates were used at each temperature. In the determination higher flow rates did not lead to lower vapor pressures, which means that the nitrogen was saturated with substance under the conditions of the test. The mean vapor pressure was 30°C: 5.36 Pa ; 40°C: 11.9 Pa and 50°C: 26.6 Pa respectively. The vapor pressure of the substance was extrapolated from the vapor pressure curve (ln Pvp versus 1/T) and was calculated to be 3.44 Pa.