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According to a Mackay Level I model calculation, the main target compartment for bis(4-fluorophenyl) ketone will be the hydrosphere (70 %), followed by sediment and soil (13 % each). The calculated Henry’s Law constant of 0.12 Pa m³/mol at 20 °C indicates low volatility of bis(4-fluorophenyl) ketone from surface waters. The adsorption / desorption behaviour as studied with the batch equilibrium method indicates a very low potential of 3-cyano-3,5,5-trimethylcyclohexanone for sorption to soil or sediment organic matter (Blume scale).


The QSAR calculated rate constant for the OH sensitized photodegradation of bis(4-fluorophenyl) ketone is approximately 4.45E-12 cm3/(molecule * s) (AopWin Computer Program, Vers. 1.92, integrated in U.S. EPA's EPI program Vers. 3.20). At 500,000 OH radicals / cm3 (approximate 24-hour mean in central), this corresponds to a half-life of 3.6 days. Bis(4-fluorophenyl) ketone was not found readily biodegradable in an OECD TG 301 F study.