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Environmental fate & pathways

Endpoint summary

Administrative data

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Additional information

The test substance is a gas under all environmental conditions and only slightly soluble in water. It has a high vapor pressure (587952 Pa) and Henry’s Law constant (1.08E6 Pa m3/mol), and low log Kow (1.95) and Koc (47.5 L/kg). Environmental releases will result in virtually all of the substance compartmentalizing into the atmosphere. Any potential atmospheric deposition to land and water would result in rapid redistribution from soil and water due to its volatility and low sorption to soil. 

The test substance is not expected to undergo appreciable biodegradation, does not hydrolyze, and is unlikely to degrade via direct photodegradation given no UV absorbance above 290 nm. However, the test substance undergoes atmospheric oxidation with a half-life of 6.2 days and does not contribute to ozone depletion or global warming. Atmospheric oxidation in laboratory studies resulted in the formation of carbonyl fluoride and trifluoroacetyl fluoride. These degradates are incorporated into raindrops/aerosols in the atmosphere and in the water phase degraded to trifluoroacetic acid, hydrogen fluoride, and carbon dioxide (Acerboni et al.,2001)