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Physical & Chemical properties

Dissociation constant

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Description of key information

Weight of evidence: results from different independent sources leading to the conclusion that the dissociation constant of trichloroacetic acid is 0.67 (pKa) at 20 ºC and between 0.64 and 0.7 at 25 ºC. 

Key value for chemical safety assessment

pKa at 20°C:
0.7

Additional information

Weight of evidence: results from different independent sources (handbooks and publications) leading to the conclusion that the dissociation constant of trichloroacetic acid is 0.67 (pKa) at 20 ºC and between 0.64 and 0.7 at 25 ºC.