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Environmental fate & pathways

Adsorption / desorption

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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 an adsorption/desorption 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 an adsorption screening 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 adsorption/desorption of the hydrolysis products have been assessed.

Boric acid:

Boric acid has a measured partition coefficient n-octanol/water (Log Pow) of -1.09. It can therefore be expected to have low potential for adsorption to soils or sediments.

Glycerol

Glycerol is considered to have low potential for adsorption to soils or sediments, based on a low partition coefficient (log Pow) and predicted log Koc values.

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.