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Physical & Chemical properties

Dissociation constant

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Description of key information

The experimental pKa value for α,α-bis[4-(dimethylamino)phenyl]-4-(phenylamino)naphthalene-1-methanol (Solvent Blue 4) containing <0.1% Michler's Ketone was found to be 0.0000000000000000000499666667 (average pKa value) at 23 degC. The value for chemical safety assessment has been considered to be 0.000000001 pKa due to the IUCLID input field limitations. 

Key value for chemical safety assessment

pKa at 20°C:
0

Additional information

The experimental pKa value for α,α-bis[4-(dimethylamino)phenyl]-4-(phenylamino)naphthalene-1-methanol was found to be 0.0000000000000000000499666667 (average pKa value) at 23 degC