Registration Dossier

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Please be aware that this old REACH registration data factsheet is no longer maintained; it remains frozen as of 19th May 2023.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

pKa values are calculated for the two constitutents of the substance:

- EC 500-029-3: pKa 12.8 - 14.8

- EC 500-044-5: pKa 13.7 - 15.1

Key value for chemical safety assessment

pKa at 20°C:

Additional information

pKa values from the two constituents of the substance are calculated giving that undissociated molecules can be expected at environmentally relevant pH values of 4 -9.