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Physical & Chemical properties

Dissociation constant

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Description of key information

Dissociation constant: pKa1 = 4.24 and pKa2 = 6.61 at 20 ± 1 °C.

Key value for chemical safety assessment

pKa at 20°C:
4.24

Additional information

The dissociation constants in water of 4-methylhexahydrophthalic acid has been investigated in accordance with OECD test methods and determined to be: pKa1=4.24 and pKa2=6.61at 20 ± 1 °C.