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Please be aware that this old REACH registration data factsheet is no longer maintained; it remains frozen as of 19th May 2023.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

Dissociation constant

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Administrative data

Link to relevant study record(s)

Description of key information

According to REACH Annex IX, 7.16, Column 2, the study does not need to be done if scientifically not possible. PFBE is a highly volatile liquid (vapour pressure 22kPa at 20°C) with low water solubility (15.6 mg/l) . In practice aqueous solutions are difficult to achieve, with the substance rapildy partitioning to air. Therefore it is not possible to measure a dissociation constant.

Key value for chemical safety assessment

Additional information

According to REACH Annex IX, 7.16, Column 2, the study does not need to be done if scientifically not possible. PFBE is a highly volatile liquid (vapour pressure 22kPa at 20°C) with low water solubility (15.6 mg/l) . In practice aqueous solutions are difficult to achieve, with the substance rapildy partitioning to air. Therefore it is not possible to measure a dissociation constant.