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Dissociation constant

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Description of key information

determination of distinct values for dissociation constant incapable

Key value for chemical safety assessment

Additional information

The substance is a complex mixture of a multitude of constituents each containing several hydroxylic functions. Thus it is technically not possible to determine a distinct dissociation constant. In accordance with column 2 (Specific rules for adaptation from column 1) of REGULATION (EC) No 1907/2006 (REACH), Annex IX, 7.16. (Dissociation constant) a study does not need to be conducted if the substance is hydrolytically unstable (half-life less than 12 hours) or is readily oxidisable in water, or it is scientifically not possible to perform the test for instance if the analytical method is not sensitive enough.