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Please be aware that this old REACH registration data factsheet is no longer maintained; it remains frozen as of 19th May 2023.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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vapour pressure
Type of information:
experimental study
Adequacy of study:
key study
2 (reliable with restrictions)
Rationale for reliability incl. deficiencies:
guideline study without detailed documentation
according to guideline
EU Method A.4 (Vapour Pressure)
GLP compliance:
Type of method:
effusion method: vapour pressure balance
Key result
25 °C
Vapour pressure:
< 0 Pa

Since no weight displacement was observed below 150 °C it can be inferred that the vapour pressure at 298K (25 °C) is lower than the detection limit of the blance i.e. less than 2.6 x 10E-4 Pa.

For the test substance a vapour pressure of below 2.6E-04 Pa at 25 °C was determined.
Executive summary:

Vapour pressure determination was performed in accordance with EU method A.4 (University of Leeds, ECHA RSS, 2017). The vapour pressure of the test substance is below 2.6E-04 Pa at 25 °C.

Description of key information

< 2.6E-04 Pa at 25 °C

Key value for chemical safety assessment

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

Additional information

In accordance with Article 25(3) of the REACH Regulation the robust study summaries submitted 12 years previously, are used for the purpose of the registration.

For the test substance a vapour pressure of below 2.6E-04 Pa at 25 °C was determined in a study according to EU method A.4 (University of Leeds, ECHA RSS, 2017).