Artículo
Reaction rate coefficients of OH radicals and Cl atoms with ethyl propanoate n-propyl propanoate, methyl 2-methylpropanoate, and ethyl n-butanoate
Fecha de publicación:
10/2009
Editorial:
American Chemical Society
Revista:
Journal of Physical Chemistry A
ISSN:
1089-5639
e-ISSN:
1520-5215
Idioma:
Inglés
Tipo de recurso:
Artículo publicado
Clasificación temática:
Resumen
Kinetics of the reactions of OH radicals and Cl atoms with four saturated esters have been investigated. Rate coefficients for the gas-phase reactions of OH radicals with ethyl propanoate (k1, n-propyl propanoate (k 2), methyl 2-methylpropanoate (k3), and ethyl n-butanoate (k4) were measured using a conventional relative rate method and the pulsed laser photolysis-laser induced fluorescence technique. At (296 ± 2) K, the rate coefficients obtained by the two methods were in good agreement. Significant curvatures in the Arrhenius plots have been observed in the temperature range 243-372 K for k3, k4 and K4. The rate coefficients for the reactions of the four esters with Cl atoms were determined using the relative rate method at (296 ± 2) K and atmospheric pressure. The values obtained are presented, compared with the literature values when they exist, and discussed. Reactivity trends and atmospheric implications for these esters are also presented.
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Articulos(INFIQC)
Articulos de INST.DE INVESTIGACIONES EN FISICO- QUIMICA DE CORDOBA
Articulos de INST.DE INVESTIGACIONES EN FISICO- QUIMICA DE CORDOBA
Citación
Cometto, Pablo Marcelo; Daële, Véronique; Idir, Mahmoud; Lane, Silvia Irene; Mellouki, Abdelwahid; Reaction rate coefficients of OH radicals and Cl atoms with ethyl propanoate n-propyl propanoate, methyl 2-methylpropanoate, and ethyl n-butanoate; American Chemical Society; Journal of Physical Chemistry A; 113; 40; 10-2009; 10745-10752
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