Registration Dossier
Registration Dossier
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EC number: 241-442-6 | CAS number: 17418-58-5
Endpoint summary
Administrative data
Description of key information
The environmental transport and distribution of the substance was evaluated in terms of adsorption/desorption. The adsorption coefficient was determined byhigh performance liquid chromatography (HPLC) method according to EC method C.19 and OECD guideline 121.
The mean log Kocof two runs was 4.34 at 20 °C, thus within the determination limit of the method.
The soil adsorption coefficient (Koc) is used as an indicator, if a substance is likely to be sorbed to sediment. In general substances with a soil adsorption coefficient (Koc) smaller than 1000 l/kg, i.e. log Koc< 3, are not likely sorbed to sediment (SETAC 1993). On this basis, test substance is expected to have a high potential for adsorption on sediment and no mobility in the environment.
A supporting evidence was derived by an adsorption test on activated sludge. Colour removal, measured as variation of turbidity, was indicative of adsorption on the sludge. After 24-hour exposure, colour removal was complete (100 %).
SETAC 1993. Guidance Document on Sediment Toxicity Tests and Bioassays for Freshwater and Marine Environments. From the Workshop on Sediment Toxicity Assessment at Renesse, Netherlands on 8-10 November 1993. Hill I., Mathiessen P., Heimbach F. (eds.). Society of Environmental Toxicology and Chemistry – Europe, Brussels.
Additional information
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