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Please be aware that this old REACH registration data factsheet is no longer maintained; it remains frozen as of 19th May 2023.

The new ECHA CHEM database has been released by ECHA, and it now contains all REACH registration data. There are more details on the transition of ECHA's published data to ECHA CHEM here.

Diss Factsheets

Physical & Chemical properties

Vapour pressure

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Administrative data

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Description of key information

Values at 20C and in Pa:

5.3 (meas)

5 (meas)

4.7 (calc)





0.5 (extrapolated from measured value at 46C.)

Values at 25C:

5.3 (meas)

1.33 (calc)

Key value for chemical safety assessment

Vapour pressure:
0.5 Pa
at the temperature of:
293 K

Additional information

Reasonably consistent values are available from multiple sources, including values at different temperatures. The key parameter retained is from values measured at elevated temperatures using a national guideline method with extrapolation to ambient temperature. This value is 0.5Pa at 25C. Clearly this substance has very low volatility.