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Dissociation constant

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Endpoint:
dissociation constant
Data waiving:
study scientifically not necessary / other information available
Justification for data waiving:
other:
Endpoint:
dissociation constant
Data waiving:
other justification
Justification for data waiving:
other:

Description of key information

Due to lack of dissociable groups and low water solubility (<1 mg/l), according to section 1 of REACH Annex XI and REACH Chapter R.7A Endpoint Specific Guidance ( R.7.1.17.1 Information Requirements on Dissociation Constant), study does not need to be conducted.

Key value for chemical safety assessment

Additional information

Ash is a complex UVCB substance containing ionisable substances, for which the assessment of pKa is complicated.