Reaction of oxygen atoms with carbonyl compounds. Part 1.—Formaldehyde
- 1 January 1973
- 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. 69, 208-215
- https://doi.org/10.1039/f19736900208
Abstract
The reaction between excess atomic oxygen and formaldehyde in the gas phase has been studied in a flow system at 300 K using product analysis, e.p.r. and chemiluminescence. The initial step O + H2CO→HCO + OH (1) has a rate coefficient of (9.0 ± 1.0)× 1010 cm3 mol–1 s–1. By comparing the reaction products with those of the reaction of oxygen atoms with ethylene where the initial steps are O + C2H4→CH3+ HCO (12), O + CH3→H2CO + H (13) it is shown that the relative rate constants of the subsequent reactions O + HCO→OH + CO (8), O + HCO→H + CO2(9), H + HCO → H2+ CO (14) are in the ratio k8 : k9 : k14= 0.54 : 0.46 : 4.0.Keywords
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