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Diss Factsheets

Physical & Chemical properties

Dissociation constant

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Administrative data

Link to relevant study record(s)

Description of key information

Determination of the 
Dissociation Constant of
FAT 40853/A TE in Water
(GLP compliant study based on OECD No. 112, 1981 and OPPTS Guideline 830.7370, 1996)
Author: Andrea Fieseler
Study Completion Date: November 17, 2011

Key value for chemical safety assessment

Additional information


The pKavalues were calculated at the half-neutralization point. Two pKavalues were determined by titration with acidic and basic solution.

pKa1= 7.783 (titration with NaOH) at 20 ± 0.3 °C

pKa2= 6.716 (titration with HCl) at 20 ± 0.3 °C