Producción CyT
Artículo
Autoría
Fecha
2006
Editorial y Lugar de Edición
Elsevier
Revista
ATMOSPHERIC ENVIRONMENT,
vol. 40
(pp. 7298-7307)
Elsevier
Resumen
Información suministrada por el agente en
SIGEVA
The relative rate technique has been used to determine the rate constants of the reactions of Cl atoms with 2-chloro- 1,1,2-trifluoroethyl-methyl-ether (CH3OCF2CHFCl) and 2-chloro-1,1,2-trifluoroethyl-difluoromethyl-ether (CHF2OC F2CHFCl). Experiments were carried out at 29672K and atmospheric pressure using nitrogen or synthetic air as bath gases. The decay rates of the organic species were measured relative to those of 1,2-dichloroethane, dichloromethane and 1,1,1,2-tretrafluoroethane. The fo...
The relative rate technique has been used to determine the rate constants of the reactions of Cl atoms with 2-chloro- 1,1,2-trifluoroethyl-methyl-ether (CH3OCF2CHFCl) and 2-chloro-1,1,2-trifluoroethyl-difluoromethyl-ether (CHF2OC F2CHFCl). Experiments were carried out at 29672K and atmospheric pressure using nitrogen or synthetic air as bath gases. The decay rates of the organic species were measured relative to those of 1,2-dichloroethane, dichloromethane and 1,1,1,2-tretrafluoroethane. The following rate coefficients were derived for the reaction of Cl atoms (in units of cm3 molecule1 s1) with CH3OCF2CHFCl, k ¼ (3.2470.49)1013 and CHF2OCF2CHFCl, k ¼ (3.2070.32)1015. The rate constants obtained are compared with previous literature data to establish reactivity trends and used to estimate the atmospheric lifetimes for the studied ethers. From the calculated lifetimes, using average global concentrations of Cl atoms and OH radicals, the atmospheric loss of CH3OCF2CHFCl and CHF2OCF2CHFCl is determined by the OHinitiated oxidation. The atmospheric implications of these reactions are discussed based on the calculated ozone depletion potential (ODP) and global warming potential (GWP) of the ethers. oxidation. The atmospheric implications of these reactions are discussed based on the calculated ozone depletion potential (ODP) and global warming potential (GWP) of the ethers. The rate constants obtained are compared with previous literature data to establish reactivity trends and used to estimate the atmospheric lifetimes for the studied ethers. From the calculated lifetimes, using average global concentrations of Cl atoms and OH radicals, the atmospheric loss of CH3OCF2CHFCl and CHF2OCF2CHFCl is determined by the OHinitiated oxidation. The atmospheric implications of these reactions are discussed based on the calculated ozone depletion potential (ODP) and global warming potential (GWP) of the ethers. oxidation. The atmospheric implications of these reactions are discussed based on the calculated ozone depletion potential (ODP) and global warming potential (GWP) of the ethers. gases. The decay rates of the organic species were measured relative to those of 1,2-dichloroethane, dichloromethane and 1,1,1,2-tretrafluoroethane. The following rate coefficients were derived for the reaction of Cl atoms (in units of cm3 molecule1 s1) with CH3OCF2CHFCl, k ¼ (3.2470.49)1013 and CHF2OCF2CHFCl, k ¼ (3.2070.32)1015. The rate constants obtained are compared with previous literature data to establish reactivity trends and used to estimate the atmospheric lifetimes for the studied ethers. From the calculated lifetimes, using average global concentrations of Cl atoms and OH radicals, the atmospheric loss of CH3OCF2CHFCl and CHF2OCF2CHFCl is determined by the OHinitiated oxidation. The atmospheric implications of these reactions are discussed based on the calculated ozone depletion potential (ODP) and global warming potential (GWP) of the ethers. oxidation. The atmospheric implications of these reactions are discussed based on the calculated ozone depletion potential (ODP) and global warming potential (GWP) of the ethers. The rate constants obtained are compared with previous literature data to establish reactivity trends and used to estimate the atmospheric lifetimes for the studied ethers. From the calculated lifetimes, using average global concentrations of Cl atoms and OH radicals, the atmospheric loss of CH3OCF2CHFCl and CHF2OCF2CHFCl is determined by the OHinitiated oxidation. The atmospheric implications of these reactions are discussed based on the calculated ozone depletion potential (ODP) and global warming potential (GWP) of the ethers. oxidation. The atmospheric implications of these reactions are discussed based on the calculated ozone depletion potential (ODP) and global warming potential (GWP) of the ethers. F2CHFCl). Experiments were carried out at 29672K and atmospheric pressure using nitrogen or synthetic air as bath gases. The decay rates of the organic species were measured relative to those of 1,2-dichloroethane, dichloromethane and 1,1,1,2-tretrafluoroethane. The following rate coefficients were derived for the reaction of Cl atoms (in units of cm3 molecule1 s1) with CH3OCF2CHFCl, k ¼ (3.2470.49)1013 and CHF2OCF2CHFCl, k ¼ (3.2070.32)1015. The rate constants obtained are compared with previous literature data to establish reactivity trends and used to estimate the atmospheric lifetimes for the studied ethers. From the calculated lifetimes, using average global concentrations of Cl atoms and OH radicals, the atmospheric loss of CH3OCF2CHFCl and CHF2OCF2CHFCl is determined by the OHinitiated oxidation. The atmospheric implications of these reactions are discussed based on the calculated ozone depletion potential (ODP) and global warming potential (GWP) of the ethers. oxidation. The atmospheric implications of these reactions are discussed based on the calculated ozone depletion potential (ODP) and global warming potential (GWP) of the ethers. The rate constants obtained are compared with previous literature data to establish reactivity trends and used to estimate the atmospheric lifetimes for the studied ethers. From the calculated lifetimes, using average global concentrations of Cl atoms and OH radicals, the atmospheric loss of CH3OCF2CHFCl and CHF2OCF2CHFCl is determined by the OHinitiated oxidation. The atmospheric implications of these reactions are discussed based on the calculated ozone depletion potential (ODP) and global warming potential (GWP) of the ethers. oxidation. The atmospheric implications of these reactions are discussed based on the calculated ozone depletion potential (ODP) and global warming potential (GWP) of the ethers. gases. The decay rates of the organic species were measured relative to those of 1,2-dichloroethane, dichloromethane and 1,1,1,2-tretrafluoroethane. The following rate coefficients were derived for the reaction of Cl atoms (in units of cm3 molecule1 s1) with CH3OCF2CHFCl, k ¼ (3.2470.49)1013 and CHF2OCF2CHFCl, k ¼ (3.2070.32)1015. The rate constants obtained are compared with previous literature data to establish reactivity trends and used to estimate the atmospheric lifetimes for the studied ethers. From the calculated lifetimes, using average global concentrations of Cl atoms and OH radicals, the atmospheric loss of CH3OCF2CHFCl and CHF2OCF2CHFCl is determined by the OHinitiated oxidation. The atmospheric implications of these reactions are discussed based on the calculated ozone depletion potential (ODP) and global warming potential (GWP) of the ethers. oxidation. The atmospheric implications of these reactions are discussed based on the calculated ozone depletion potential (ODP) and global warming potential (GWP) of the ethers. The rate constants obtained are compared with previous literature data to establish reactivity trends and used to estimate the atmospheric lifetimes for the studied ethers. From the calculated lifetimes, using average global concentrations of Cl atoms and OH radicals, the atmospheric loss of CH3OCF2CHFCl and CHF2OCF2CHFCl is determined by the OHinitiated oxidation. The atmospheric implications of these reactions are discussed based on the calculated ozone depletion potential (ODP) and global warming potential (GWP) of the ethers. oxidation. The atmospheric implications of these reactions are discussed based on the calculated ozone depletion potential (ODP) and global warming potential (GWP) of the ethers. 3OCF2CHFCl) and 2-chloro-1,1,2-trifluoroethyl-difluoromethyl-ether (CHF2OC F2CHFCl). Experiments were carried out at 29672K and atmospheric pressure using nitrogen or synthetic air as bath gases. The decay rates of the organic species were measured relative to those of 1,2-dichloroethane, dichloromethane and 1,1,1,2-tretrafluoroethane. The following rate coefficients were derived for the reaction of Cl atoms (in units of cm3 molecule1 s1) with CH3OCF2CHFCl, k ¼ (3.2470.49)1013 and CHF2OCF2CHFCl, k ¼ (3.2070.32)1015. The rate constants obtained are compared with previous literature data to establish reactivity trends and used to estimate the atmospheric lifetimes for the studied ethers. From the calculated lifetimes, using average global concentrations of Cl atoms and OH radicals, the atmospheric loss of CH3OCF2CHFCl and CHF2OCF2CHFCl is determined by the OHinitiated oxidation. The atmospheric implications of these reactions are discussed based on the calculated ozone depletion potential (ODP) and global warming potential (GWP) of the ethers. oxidation. The atmospheric implications of these reactions are discussed based on the calculated ozone depletion potential (ODP) and global warming potential (GWP) of the ethers. The rate constants obtained are compared with previous literature data to establish reactivity trends and used to estimate the atmospheric lifetimes for the studied ethers. From the calculated lifetimes, using average global concentrations of Cl atoms and OH radicals, the atmospheric loss of CH3OCF2CHFCl and CHF2OCF2CHFCl is determined by the OHinitiated oxidation. The atmospheric implications of these reactions are discussed based on the calculated ozone depletion potential (ODP) and global warming potential (GWP) of the ethers. oxidation. The atmospheric implications of these reactions are discussed based on the calculated ozone depletion potential (ODP) and global warming potential (GWP) of the ethers. gases. The decay rates of the organic species were measured relative to those of 1,2-dichloroethane, dichloromethane and 1,1,1,2-tretrafluoroethane. The following rate coefficients were derived for the reaction of Cl atoms (in units of cm3 molecule1 s1) with CH3OCF2CHFCl, k ¼ (3.2470.49)1013 and CHF2OCF2CHFCl, k ¼ (3.2070.32)1015. The rate constants obtained are compared with previous literature data to establish reactivity trends and used to estimate the atmospheric lifetimes for the studied ethers. From the calculated lifetimes, using average global concentrations of Cl atoms and OH radicals, the atmospheric loss of CH3OCF2CHFCl and CHF2OCF2CHFCl is determined by the OHinitiated oxidation. The atmospheric implications of these reactions are discussed based on the calculated ozone depletion potential (ODP) and global warming potential (GWP) of the ethers. oxidation. The atmospheric implications of these reactions are discussed based on the calculated ozone depletion potential (ODP) and global warming potential (GWP) of the ethers. The rate constants obtained are compared with previous literature data to establish reactivity trends and used to estimate the atmospheric lifetimes for the studied ethers. From the calculated lifetimes, using average global concentrations of Cl atoms and OH radicals, the atmospheric loss of CH3OCF2CHFCl and CHF2OCF2CHFCl is determined by the OHinitiated oxidation. The atmospheric implications of these reactions are discussed based on the calculated ozone depletion potential (ODP) and global warming potential (GWP) of the ethers. oxidation. The atmospheric implications of these reactions are discussed based on the calculated ozone depletion potential (ODP) and global warming potential (GWP) of the ethers. 2CHFCl). Experiments were carried out at 29672K and atmospheric pressure using nitrogen or synthetic air as bath gases. The decay rates of the organic species were measured relative to those of 1,2-dichloroethane, dichloromethane and 1,1,1,2-tretrafluoroethane. The following rate coefficients were derived for the reaction of Cl atoms (in units of cm3 molecule1 s1) with CH3OCF2CHFCl, k ¼ (3.2470.49)1013 and CHF2OCF2CHFCl, k ¼ (3.2070.32)1015. The rate constants obtained are compared with previous literature data to establish reactivity trends and used to estimate the atmospheric lifetimes for the studied ethers. From the calculated lifetimes, using average global concentrations of Cl atoms and OH radicals, the atmospheric loss of CH3OCF2CHFCl and CHF2OCF2CHFCl is determined by the OHinitiated oxidation. The atmospheric implications of these reactions are discussed based on the calculated ozone depletion potential (ODP) and global warming potential (GWP) of the ethers. oxidation. The atmospheric implications of these reactions are discussed based on the calculated ozone depletion potential (ODP) and global warming potential (GWP) of the ethers. The rate constants obtained are compared with previous literature data to establish reactivity trends and used to estimate the atmospheric lifetimes for the studied ethers. From the calculated lifetimes, using average global concentrations of Cl atoms and OH radicals, the atmospheric loss of CH3OCF2CHFCl and CHF2OCF2CHFCl is determined by the OHinitiated oxidation. The atmospheric implications of these reactions are discussed based on the calculated ozone depletion potential (ODP) and global warming potential (GWP) of the ethers. oxidation. The atmospheric implications of these reactions are discussed based on the calculated ozone depletion potential (ODP) and global warming potential (GWP) of the ethers. 3 molecule1 s1) with CH3OCF2CHFCl, k ¼ (3.2470.49)1013 and CHF2OCF2CHFCl, k ¼ (3.2070.32)1015. The rate constants obtained are compared with previous literature data to establish reactivity trends and used to estimate the atmospheric lifetimes for the studied ethers. From the calculated lifetimes, using average global concentrations of Cl atoms and OH radicals, the atmospheric loss of CH3OCF2CHFCl and CHF2OCF2CHFCl is determined by the OHinitiated oxidation. The atmospheric implications of these reactions are discussed based on the calculated ozone depletion potential (ODP) and global warming potential (GWP) of the ethers. oxidation. The atmospheric implications of these reactions are discussed based on the calculated ozone depletion potential (ODP) and global warming potential (GWP) of the ethers. 3OCF2CHFCl and CHF2OCF2CHFCl is determined by the OHinitiated oxidation. The atmospheric implications of these reactions are discussed based on the calculated ozone depletion potential (ODP) and global warming potential (GWP) of the ethers.
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WARMING POTENTIALSCFCSSIMULATION CHAMBERS