Atmospheric chemistry of (CF3)2CFOCH3

FTIR smog chamber techniques were used to measure k(Cl + (CF3)2CFOCH3) = (1.80 ± 0.42) × 10–13, k(Cl + (CF3)2CFOCHO) = (1.47 ± 0.56) × 10−14, and k(OH + (CF3)2CFOCH3) = (1.55 ± 0.24) × 10−14 cm3 molecule−1 s−1. The chlorine-atom initiated oxidation of (CF3)2CFOCH3 in air in the absence of NOX results in conversion of (CF3)2CFOCH3 into the formate, (CF3)2CFOCHO, in a yield indistinguishable from 100%. In the presence of NOX, the (CF3)2CFOCHO yield was decreased by approximately 17%, which we attribute to the formation of peroxy and/or alkoxy nitrates. The atmospheric lifetime of (CF3)2CFOCH3 was estimated to 3.7 years. The infrared spectrum of (CF3)2CFOCH3 was measured and a global warming potential GWP100 = 354 was determined.