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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.