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Physical & Chemical properties

Dissociation constant

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Description of key information

No conductivity could be measured which was ascribable on dissociated parts of the registered substance. The very low conductivity measured in the sample solution was caused by impurities (ions of the elements calcium, sodium, potassium and sulfur (sulfate)). Due to this fact the calculation of the dissociation constant was not possible.

Key value for chemical safety assessment

Additional information

Dissociation constant in water of the registered substance was determined according to OECD Guideline 112. Dissociation constant in water was determined at 20 °C by using the conductometric method.

Result:

No conductivity could be measured which was ascribable on dissociated parts of the registered substance. The very low conductivity measured in the sample solution was caused by impurities (ions of the elements calcium, sodium, potassium and sulfur (sulfate)). Due to this fact the calculation of the dissociation constant was not possible.