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| Titel |
Relative rate coefficients of OH radical reactions and Ozone Depletion Potential estimate for CF3CF=CClCF3 |
| VerfasserIn |
Juan Pablo Aranguren Abrate, Ignacio Pisso, Silvina Anahí Peirone, Pablo Marcelo Cometto, Silvia Irene Lane |
| Konferenz |
EGU General Assembly 2014
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| Medientyp |
Artikel
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| Sprache |
Englisch
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| Digitales Dokument |
PDF |
| Erschienen |
In: GRA - Volume 16 (2014) |
| Datensatznummer |
250100259
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| Publikation (Nr.) |
 EGU/EGU2014-16158.pdf |
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| Zusammenfassung |
| The relative rate method was used to determine the rate coefficients for the reactions of OH
radicals with CF3CF=CClCF3 (k). Experiments were carried out at (298 ± 2) K and
atmospheric pressure using ultra pure air or ultra pure nitrogen as the gas bath. The k value
was measured relative to those of chloroethane and ethane. The rate coefficient derived in
units of cm3 molecule-1 s-1 was k = (3.3 ± 0.9) 10-13. This is the first experimental
determination of k. The rate coefficient was used to estimate the atmospheric lifetime
for the studied haloalkene considering the OH-initiated oxidation process. The
ozone depletion potential (ODP) for CF3CF=CClCF3 was estimated following a
recently-developed technique based on Lagrangian trajectories, which takes into
account the time and location of the release of the short-lived halogenated species. |
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