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Please be aware that this old REACH registration data factsheet is no longer maintained; it remains frozen as of 19th May 2023.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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Link to relevant study record(s)

Description of key information

- Dissociation Constant: The dissociation constant of Amines, N-C12-18-alkylbis(trimethylene)tri-, reaction products with N-C12-18-alkyltrimethylenediamines and formic acid at 20°C and 756 mm Hg is 8.6, study CECA SA 2010/K2 KS/ dissociation constant 

Key value for chemical safety assessment

pKa at 20°C:
8.6

Additional information

One reliable study (Klimisch , reliable with restrictions, "CECA SA 2010/K2 KS/ dissociation constant", according to OECD TG 112) is available describing the determination of the dissociation constant of Amines, N-C12-18-alkylbis(trimethylene)tri-, reaction products with N-C12-18-alkyltrimethylenediamines and formic acid.

The dissociation constant of the test item was determined to be 8.6