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Environmental fate & pathways

Hydrolysis

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Description of key information

Not relevant due to ready biodegradation

Key value for chemical safety assessment

Additional information

No experimental data evaluating the hydrolysis of 1,2,3-propanetriyl trioleate (CAS No. 122-32-7) are available. However, according to Regulation (EC) No. 1907/2006, Annex VIII, column 2, 9.2.2.1, testing for hydrolysis is not required since the substance is readily biodegradable. The results from the supporting QSAR calculation performed on the main fatty acid component (C18 tri- unsaturated) with HYDROWIN v2.00 indicate that indeed hydrolysis is not expected to be a relevant degradation pathway for this substance, with half-lives of 1.5 years (pH 7) and 55 days (pH 8)(López Parrón, 2011).