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Physical & Chemical properties

Dissociation constant

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Description of key information

The test substance will be deprotonated at all sites but the hydroxy group all over the whole environmental relevant pH range (pH 5 to pH 8).

Key value for chemical safety assessment

Additional information

The dissociation constant in water of the test substance was calculated using the Hammett and Taft Correlation methods and four pKa were estimated (RCC 2003). The hydroxy group of the test substance is protonated at pH 11.23 and below. All other sites are deprotonated above pH 0. Thus the test substance will be deprotonated at all sites but the hydroxy group all over the whole environmental relevant pH range (pH 5 to pH 8).