Abstract
Using a relative rate method, rate constants of cyclo-CFCFCF2CF2–, cyclo-CHCFCF2CF2–, and cyclo-CHCHCF2CF2– reaction with OH radicals were determined to be (3.15±0.93)×10−13exp[(630±90)/T], (4.60±1.31)×10−13exp[(600±80)/T], and (3.28±0.57)×10−13exp[(190±50)/T] between 253 and 328K, and (3.79±0.11)×10−14, (6.15±0.16)×10−14, and (1.73±0.03)×10−13cm3molecule−1s−1 at 298K. The atmospheric lifetimes and GWPs for the 100year time horizon were estimated to be 1.02, 0.63, and 0.19years, and 119, 76, and 20.
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