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Environmental fate & pathways

Biodegradation in water: screening tests

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Description of key information

In a modified Sturm test according OECD 301B the test substance bis(4-tert-butylcyclohexyl) peroxydicarbonate could not be demonstrated to be readily biodegradable under the chosen test conditions.

Key value for chemical safety assessment

Biodegradation in water:
under test conditions no biodegradation observed

Additional information

A five-day bacterial inhibition assay employing the conditions of the closed bottle test (OECD 301D) showed that bis(4-tert-butylcyclohexyl) peroxydicarbonate was not inhibitory to microorganisms. This experiment served as a surrogate for a toxicity control to the subsequently performed modified Sturm test. Bis(4-tert-butylcyclohexyl) peroxydicarbonate was not readily degraded in the modified Sturm test according OECD 301B. Cumulative CO2 production by inocula containing the test substance was equivalent to a maximum of 3 % of its ThCO2 (2.43 mg CO2/mg), indicating that it was not degraded under the conditions of the test.