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Physical & Chemical properties

Vapour pressure

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Description of key information

0.0025mmHg @ 25C (equivalent to 0.33Pa)
<1hPa @ 20C
0.031Pa extrapolated from measurements made at elevated temperatures.
0.02Pa estimated at 20C from Antoine constants

Key value for chemical safety assessment

Vapour pressure:
0.33 Pa
at the temperature of:
298 K

Additional information

Consistent values are available from multiple sources, including values at different temperatures. The key parameter retained is from a recognised reliable source. The value of 0.33Pa at 25C is based on the value cited in mmHg from the key source.