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Please be aware that this old REACH registration data factsheet is no longer maintained; it remains frozen as of 19th May 2023.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

<= 0.00051 hPa at 20 °C (OECD 104, Grain-Watson estimation) 
0.00013 hPa at 20 °C (extrapolated from vapour pressure curve (DSC measurements))

Key value for chemical safety assessment

Vapour pressure:
0.001 hPa
at the temperature of:
20 °C

Additional information

The vapour pressure was determined experimentally and estimated by calculation based on the lowest possible boiling temperature (329 °C).

Since the experimental value (0.00013 hPa, extrapolated from vapour pressure curve (DSC measurements)) fell outside the recommended range for DSC measurements, a calculation algorithm as described in OECD 104 (Grain-Watson method) was used.

No information on transition / decomposition is given.

The QSAR calculations with MPBPWIN v1.43 (Episuite) qualitatively support the experimental data for vapour pressure.

The limit vapour pressure 0.00051 hPa at 20 °C is taken as key value for chemical safety assessment.