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Environmental fate & pathways

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An experimentally determination of the adsorption coefficient according to OECD TG 121 is not possible, as the substance is insoluble or only poorly soluble in water and using a co-solvent, the test item immediately precipitates after contact with water. Therefore, the adsorption coefficients were calculated using the software KOCWIN v2.00 owned by the U.S. Environmental Protection Agency on the basis of the structural formula of the test item components and possible hydrolysis products. Based on the results, the log Koc of the substance is expected to be higher than 10, indicating a high potential for adsorption.

The Henry's Law Constant of the substance is calculated to be 0.0000146 Pa m³/mol at a temperature of 25 °C. It is directly calculated as a ratio of the calculated vapour pressure (VP, 2.19E-08 Pa) to the measured water solubility (c, 3 mg/l). The molecular weight (MW, 1998 g/mol) of the test item was also used for estimation. The substance is low volatile from surface waters.