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Dissociation constant

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Description of key information

Dissociation constant: not relevant.

Key value for chemical safety assessment

Additional information

In accordance with column 2 of REACH Annex IX, this study does not need to be conducted because on the basis of its chemical structure the product does not include any ionisable atoms or functional groups. In accordance with REACH Chapter R.7A Endpoint Specific Guidance, specifically R.7.1.17.1 Information Requirements on Dissociation Constant, if the substance cannot dissociate due to a lack of relevant functional groups, the dissociation constant is irrelevant. Hydrocarbons, C8-C11, n-alkanes, isoalkanes, <2% aromatics does not contain functional groups subject to dissociation, consequently a study is not justified.

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