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Physical & Chemical properties

Dissociation constant

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Description of key information

 pKa: 4.09 (Temperature not defined).

Key value for chemical safety assessment

Additional information

Data have been obtained from secondary source that mentions Pearce PJ, Simkins RJJ. 1968. Acid strengths of some substituted picric acids. Can J Chem 46:241-248. Method has not been specified.

2,4-dinitrophenol has a dissociation constant pKa of 4.09.