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Physical & Chemical properties

Dissociation constant

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Description of key information

The dissocitaion constant was not determined for DAPD directly, instead, the component R-59 was used as surrogate. The results found for R-59 were assumed to be valid for DAPD.

The pKa for the non-methylated 20% component (R-59) of the submission substance was determined to be approximately 1.4.

Key value for chemical safety assessment

pKa at 20°C:
1.4

Additional information