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Physical & Chemical properties

Vapour pressure

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Description of key information

The key value for this endpoint was taken from a QSAR result which is fully validated for the type of substance (organics), is relevant for this regulatory purpose and has been recommended by the regulatory authority (ECHA, R.7a).
The key value was derived using the EPIWIN model MPBPWIN, which was given a reliability score of 2 based upon the criteria of Klimisch et al, 1997, and the guidelines set out by the ECHA in guidance document R.7a and R.8.

Key value for chemical safety assessment

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

Additional information

The key study (QSAR model with reliability score of 2) produced a result of 0.0000744 mm Hg (0.00993 Pa) at 25ºC. This key value is supported by a literature source (rated a reliability of 2) which provides a result of 0.00005 mm Hg (4.62 pKa) at around 25ºC.

Supporting information is also available from the SCS/ARS/CSE Pesticide Properties Database for Environmental Decision-Making II.

Result: The substance is reported to have a vapour pressure of 5x10-5mm Hg (4.62 pKa) at around 25ºC.