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Environmental fate & pathways

Biodegradation in water: screening tests

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Description of key information

Alchisor CAL 123 was assessed for ready biodegradability in a reliable (Klimisch 1), GLP compliant OECD Guideline 301B (Ready Biodegradability: CO2 Evolution Test). On the basis of this study Alchisor CAL 123 can be regarded as readily biodegradable

Key value for chemical safety assessment

Biodegradation in water:
readily biodegradable

Additional information

Alchisor CAL 123 was assessed for ready biodegradability in a reliable (Klimisch 1), GLP compliant OECD Guideline 301B (Ready Biodegradability: CO2 Evolution Test). The test substance biodegraded to an extent of 87.7% after 28 days with an unacclimated sewage sludge inoculum. The test substance did not achieve 60% degradation with a 10-day window for ready biodegradability. As Alkenes, C11-12, hydroformylation products, distn. Residues are a mixture, the 10-day window test is not applicable as the only determination of ready biodegradability as different components of the mixture can degrade preferentially (reference TG 103C). On the basis of this study Alchisor CAL 123 can be regarded as readily biodegradable.

 

Since this UVCB is a mixture of esters, ethers, paraffins, aldehydes and alcohols it is unlikely that any of these components would be degraded into chemicals that might be of cause for concern.