Issue 4, 1997

Rate coefficients and Arrhenius parameters for the reactions between chloroethenes and the nitrate radical

Abstract

Rate coefficients for the reactions between NO 3 and the chloroethenes have been determined by the fast-flow-discharge technique and by the relative rate method in a static reactor employing FTIR detection. The relative rate experiments were performed at 298 ± 2 K and 1013 ± 3 mbar in a nitrogen atmosphere with excess ethane as a chlorine scavenger. The flow tube experiments were carried out under pseudo-first-order conditions in NO 3 . The temperature dependence of the NO 3 reactions with chloroethene and trichloroethene was investigated over a temperature range of ca. 100 K, and their rate coefficients were fitted to Arrhenius expressions. A comparison between our measured rate coefficient data for the NO 3 reaction with chloroethenes reveals that the relative rate results are up to 20% lower than those from the fast-flow-discharge experiments. Possible secondary reactions in the flow tube are discussed.

Article information

Article type
Paper

J. Chem. Soc., Faraday Trans., 1997,93, 525-531

Rate coefficients and Arrhenius parameters for the reactions between chloroethenes and the nitrate radical

I. M. W. Noremsaune, S. Langer, E. Ljungström and C. J. Nielsen, J. Chem. Soc., Faraday Trans., 1997, 93, 525 DOI: 10.1039/A606008K

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