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Physical & Chemical properties

Dissociation constant

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Description of key information

The dissociation constants of IPPD are pKa(HL/H+L) = 6.76±0.32 and pKa(H2L/H+HL) = -0.79±0.40 at 25 °C, which were calculated by using ACD/Labs, v. 7.00 (Currenta, 2010).

Key value for chemical safety assessment

pKa at 20°C:
6.76

Additional information

According to QSAR estimation, this substance presents mainly as neutral equilibrium form under terms of environment, and hence this estimate can be used for chemical safety assessment.