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Please be aware that this old REACH registration data factsheet is no longer maintained; it remains frozen as of 19th May 2023.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

Link to relevant study record(s)

Description of key information

In accordance with column 2 of REACH Annex VII, the study was not conducted because the melting point is between 200°C and 300°C. Also the substance decomposes before melting. A recognized calculation method is considered as sufficient. 
The calculation was performed using MPBPWIN v.1.42 (U.S. Environmental Protection Agency) on a personal computer running Windows XP. The structure is entered into MPBPWIN by SMILES notations. Vapor Pressure is estimated in MPBPWIN by three methods; all three methods use the boiling point. The first is the Antoine method (see Chapter 14 of W.J. Lyman's book "Handbook of Chemical Property Estimation Methods", Washington, DC: American Chemical Society, 1990). The second is the modified Grain method (see page 31 of Neely and Blau's Environmental Exposure from Chemicals, Volume I, CRC Press, 1985). The third is the Mackay method (see page 31-2 of Neely and Blau's Environmental Exposure from Chemicals, Volume I, CRC Press, 1985.

Key value for chemical safety assessment

Vapour pressure:
0 Pa
at the temperature of:
25 °C

Additional information

The calculation can be considered reliable and suitable for use as the key study for this endpoint.