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Please be aware that this old REACH registration data factsheet is no longer maintained; it remains frozen as of 19th May 2023.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 = 13.77 for C18 FA diglycerol monoester
pKa = 13.75 for C18 FA triglycerol monoester
pKa = 13.98 for C18 glycerol diester
pKa = 13.91 for C18 FA triglycerol diester
no dissociation for C18 FA glycerol triester and C18 FA diglycerol diester

Key value for chemical safety assessment

Additional information

The dissociation constants for the single components of the substance 1,2,3 -propanetriol, homopolymer, diisooctadecanoate (CAS 63705 -03 -3) was determined with SPARC (v4.6) calculation in the range pH = -0.2 - 14.