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Please be aware that this old REACH registration data factsheet is no longer maintained; it remains frozen as of 19th May 2023.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

Two dissociation points

Key value for chemical safety assessment

Additional information

The dissociation constant values for the two carboxylic acid functional groups were estimated to be independent of the coco alkyl chain length present, resulting in values of 3.3 ± 0.1 and 4.0 ± 0.1. For the tertiary amine functional group, the dissociation constant estimates were in the range 10.1 to 10.6 ± 0.7, depending on the coco alkyl chain length present.