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Environmental fate & pathways

Adsorption / desorption

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Description of key information

The adsorption coefficient (Koc) of the substance on soil and on sewage sludge was estimated in a study conducted in compliance with GLP according to OECD TG 121 (HPLC method). Solutions of reference substances with known log Koc values based on soil adsorption data and the substance were analysed by HPLC using a Hypersil BDS-CN column at 35 °C. The log k’ values of reference substances were plotted against the known log Koc values. The log Koc value for the test substance was calculated by substituting its mean log k’ in the calibration curve. The Koc and log Koc values of the main component of the substance at neutral pH were 620 L/kg and 2.79 respectively and cover all constituents of Terpinyl Acetate multi.

Key value for chemical safety assessment

Koc at 20 °C:
620

Additional information