![]() Kinetic rate coefficients with Cl atoms have been measured using the discharge flow tube-mass spectrometric technique at 1 Torr of total pressure. In the present work, we report the results obtained in the study of the reactions of Cl radicals with HFE- 7000 (CF( 3)CF(2)CF(2) OCH( 3)) (1) and its isomer CF( 3)CF(2)CF(2)CH(2)OH (2). Nevertheless, Cl atoms reaction may also be important since rate constants are generally larger than those of OH. Tropospheric degradation is expected to be initiated mainly by OH reactions in the gas phase. Thus, it is necessary to improve our knowledge about lifetimes and global warming potentials (GWP) for these compounds in order to get a complete evaluation of their environmental impact. Nevertheless, the presence of a great number of C-F bonds drives to atmospheric long-lived compounds with infrared absorption features. Hydrofluoroethers (HFEs) and fluorinated alcohols are currently being introduced in many applications for this purpose. ![]() The adverse environmental impacts of chlorinated hydrocarbons on the Earth's ozone layer have focused attention on the effort to replace these compounds by nonchlorinated substitutes with environmental acceptability. Atmospheric chemistry of HFE- 7000 (CF( 3)CF (2)CF (2) OCH ( 3)) and 2,2, 3,3,4,4,4-heptafluoro-1-butanol (CF ( 3)CF (2)CF (2)CH (2)OH): kinetic rate coefficients and temperature dependence of reactions with chlorine atoms.ĭÃaz-de-Mera, Yolanda Aranda, Alfonso Bravo, Iván RodrÃguez, Diana RodrÃguez, Ana Moreno, Elena ![]()
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