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Environmental fate & pathways

Biodegradation in water: screening tests

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Description of key information

The reference substance hydrolyses within less than an hour to its hydrolysis products; Boric acid and glycerol. Therefore, conducting a ready biodegradation study on the reference substance is not feasible.

Key value for chemical safety assessment

Additional information

The reference substance hydrolyses within less than an hour to its hydrolysis products; Boric acid and glycerol. Therefore, conducting a ready biodegradation study on the reference substance is not feasible. If a study were conducted it would give a result representative of the hydrolysis products mentioned above.

The biodegradation of the hydrolysis products, boric acid and glycerol have been assessed.

Boric acid

A ready biodegradation study is not relevant for boric acid as it is an inorganic compound and not degradable. It is not subject to hydrolysis, photodegradation or biodegradation.

Glycerol

Glycerol is considered to be readily biodegradable.

Refer to section 13, Ecotoxicological expert report (BAGE: Evaluation of Environmental Fate and Ecotoxicity Properties) for further details of the evalaution of ecotoxicological properties of the reference substance and its hydrolysis products, especially for additional information on glycerol.