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Environmental fate & pathways

Adsorption / desorption

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Description of key information

The study was conducted according to OECD Guideline 121, Estimation of the Adsorption Coefficient (KOC) on Soil and on Sewage Sludge

using high performance liquid chromatography (HPLC). At pH values of 2 and 10, the k’ for the test material could not be calculated for both the 5.0 and 10 mg L-1 test concentrations. This was because there were no substantial sample peaks observed in any of the chromatograms. It has been demonstrated that the test substance has a chromophore and therefore is assumed to have been retained on the column and has been assigned a log10 KOC value of >5.0.

Key value for chemical safety assessment

Koc at 20 °C:
100 000

Additional information

A reliability rating of 1 was assigned to the key study, according to the criteria of Klimisch, 1997 as the study was conducted in accordance with recognised guidelines and GLP.

[LogKoc: 5.0]

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