The mechanism of the interaction of methyl radicals with molecular oxygen has been studied at pressures from 0.5 to 3.5 mm Hg and at temperatures from 100° to 450°.
The products of the reaction have been found to include methyl perhydroxide and carbon dioxide. The perhydroxide is the most important of the oxygen-containing compounds detected.
Formaldehyde was not detected among the reaction products in the interaction of methyl radicals and oxygen.
The effective rate constant of the elementary reaction of the methyl radical with molecules of oxygen has been measured.
The absolute value of the rate constant has been determined for the bimolecular reaction CH3 +O2-CH3OO*, and for the termolecular reaction CH3 + O2 + M-CH3OO+M.