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Physical & Chemical properties

Dissociation constant

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Description of key information

Methylcyclohexane does not contain functional groups subject to dissociation and consequently a study is not justified.

Key value for chemical safety assessment

Additional information

In accordance with the guidance for implementation of REACH, document on Guidance on information requirements and CSA, Chapter R.7a: Endpoint Specific Guidance (ECHA 2008), specifically section R.7.1.17.1, Information requirements on dissociation constant, the dissociation constant is irrelevant if the substance cannot dissociate due to a lack of relevant functional groups. Methylcyclohexane does not contain functional groups subject to dissociation and consequently a study is not justified.