Reactions of oxygenated radicals in the gas phase. Part 10.—Self-reactions of ethylperoxy radicals
- 1 January 1983
- journal article
- research article
- Published by Royal Society of Chemistry (RSC) in Journal of the Chemical Society, Faraday Transactions 1: Physical Chemistry in Condensed Phases
- Vol. 79 (2) , 505-516
- https://doi.org/10.1039/f19837900505
Abstract
The photo-oxidation of azoethane has been studied by molecular modulation spectroscopy in order to determine the overall rate constant for the second-order removal of ethylperoxy radicals between 303 and 457 K. The principal molecular products of the reaction between 302 and 373 K are acetaldehyde, ethanol and ethyl hydroperoxide. From the reaction rate data and analytical results, the following results have been obtained for the reactions 2C2H5O2 ˙→ CH2CHO + C2H5OH + O2. (3a) 2C2H5O2 ˙→ 2C2H5O˙+ O2. (3b)k3b/k3a increases with temperature from 1.75 ± 0.05 at 302 K to 2.45 ± 0.15 at 373 K. Arrhenius expressions for reactions (3a) and (3b) have been estimated.Keywords
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