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Physical & Chemical properties

Dissociation constant

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Description of key information

Piperazine: pKa1 is 9.7 and pKa2 is 5.3
Melamine: first ionization pka is 5.34
Phosphoric acid: pka1 is 2.15, pka2 is 7.20 and pka3 is 12.35

Key value for chemical safety assessment

Additional information

Estimation of the substance representative constituent’s pKa values.