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Physical & Chemical properties

Vapour pressure

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Description of key information

The vapour pressure was reported to be 24 Pa at 20 °C.

Key value for chemical safety assessment

Vapour pressure:
24 Pa
at the temperature of:
20 °C

Additional information

A literature review was conducted. In a weight of evidence approach the literature values were evaluated. The authoritative database form the Institute for Occupational Safety and Health of the German Social Accident Insurance (GESTIS database) reports the vapour pressure to be 24 Pa at 20 °C and 195 Pa at 50 °C respectively. In addition in the Handbook of physical-chemical properties and environmental fate for organic chemicals two publications were given. Stull (1974) calculated the vapour pressure to be 42.1 Pa at 20 °C using the Antoine equation. Stephenson & Malanowski (1987) calculated the vapour pressure to be 27.5 Pa at 20 °C using the Antoine equation. All available sources report the boiling point to be in the same range and were therefore regarded as reliable. The vapour pressure of 24 Pa at 20 °C was chosen as key value for chemical safety assessment as it was from a direct measurement and therefore regarded as most reliable.