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Environmental fate & pathways

Hydrolysis

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Description of key information

Although an hydrolysis study according to OECD 111 was performed with the substance, section 2 of REACH Annex XI mention that the hydrolysis as a function of pH study (section 9.2.2.1) does not need to be performed if the substance is an UVCB, the components may hydrolyze at different rates compounding the determination of this endpoint. Therefore, no key value for chemical assessment was determined.

Key value for chemical safety assessment

Additional information

A hydrolysis study according to OECD 111 was performed with 4,4’-Isopropylidenediphenol, oligomeric reaction products with 1-chloro-2,3-epoxypropane, reaction products with butan-1-ol and 3-aminomethyl-3,5,5-trimethylcyclohexylamine. However, due to low solubility at pH 7 and pH 9 no hydrolysis rate could be determined. At pH 4, the substance was found to be relatively stable with a half-life time > 1 year.

In accordance with section 2 of REACH Annex XI, the hydrolysis as a function of pH study (section 9.2.2.1) does not need to be performed as the substance is an UVCB, the components may hydrolyze at different rates compounding the determination of this endpoint. Therefore, no key value for chemical assessment was determined.