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Please be aware that this old REACH registration data factsheet is no longer maintained; it remains frozen as of 19th May 2023.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

No measured data are available for the dissociation constant.  However, for EUF – as a reaction mixture – the determination of the pKa values is not possible due to its hydrolysis properties. In a 1% aqueous solution pH values in the range of 7.3 - 7.7 were measured. From the chemical structures of the constituents and the composition of the substance it can be safely concluded that neither acidic nor alkaline groups are present. Therefore, generation of these data would not improve the database for the hazard assessment and a study is scientifically not justified.

Key value for chemical safety assessment

Additional information