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EC number: 202-284-3
CAS number: 93-89-0
The vapour pressure was reported to be 24 Pa at 20 °C.
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
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