Kinetics of Co-oxidation of Hydrocarbons and Ketones

In order to determine the relative reactivity of hydrocarbons and ketones toward their peroxy radicals, oxidation reaction of hydrocarbons in the presence of ketones was investigated.Oxygen absorption rates observed are plotted against the concentration (Fig.1∼4). Relative reactivities of peroxy radicals were calculated from Equation ( 1 ) by means of co-oxidation rate method (Table 4). The reactivities of peroxy radicals from ketones seem to depend on their structure.The shape of the curve of oxygen absorption rate was determined by three parameters r A, r, 3 and in Equation ( 1 ), that is, the value of in Equation (7). The relative reactivities were also determined by the methods of Mayo-Lewis and of FinemanRoss (Table 6), and the reliability of their values was discussed.