Photooxidation of acetone vapor
| Autor: | D. A. Whytock, D. E. Hoare |
|---|---|
| Rok vydání: | 1967 |
| Předmět: | |
| Zdroj: | Canadian Journal of Chemistry. 45:865-872 |
| ISSN: | 1480-3291 0008-4042 |
| DOI: | 10.1139/v67-144 |
| Popis: | 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. |
| Databáze: | OpenAIRE |
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