Photooxidation of acetone vapor
Open Access
- 15 April 1967
- journal article
- Published by Canadian Science Publishing in Canadian Journal of Chemistry
- Vol. 45 (8), 865-872
- https://doi.org/10.1139/v67-144
Abstract
The photochemical reaction between acetone and oxygen has been studied at temperatures from 100 to 250 °C at several oxygen pressures with light of 3 130 Å. A study of the quantum yields of all the major products has shown the necessity of introducing the reaction [Formula: see text] [Formula: see text]to the generally accepted mechanism, with a rate constant about 80 times that of the reaction [Formula: see text]at 100 °C. Both this reaction and the reaction of acetyl radicals with oxygen appear to have low or negative activation energies, consistent with a rate-determining process involving combination of the radical with oxygen. The reaction of acetonyl radicals with oxygen to give carbon monoxide is not important at temperatures below 150 °C, but it becomes the most important reaction at temperatures above 250 °C.Keywords
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