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Physical & Chemical properties

Dissociation constant

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Description of key information

Dissociation constant: pKa1 = 3.84 and pKa2 = 6.60 at 20°C. 

Key value for chemical safety assessment

pKa at 20°C:
3.84

Additional information

The dissociation constant in water has been investigated in accordance with OECD/EPA test methods and determined to be: pKa1= 3.84 and pKa2= 6.60 at 20°C.