Kinetics of the reactions of OH radicals with selected acetates and other esters under simulated atmospheric conditions

Article abstract of DOI:10.1002/kin.550250704

The relative hydroxyl reaction rate constants from the simulated atmospheric oxidation of selected acetates and other acetates and other esters have been measured. Reactions were carried out at 297 ± 2K in 100-liter FEP teflon-film bags. the OH radicals were generated from the photolysis of methyl nitrite in pure air. Using a rate constant of 2.63 × 10^-11 cm³ molecule^-1 s^-1 for the reaction of OH radicals with propene, principal reference organic compound, the rate constants (×10¹² cm³ molecule^-1 s^-1) obtained for the acetates and esters used in this study. A linear correlation was observed for a plot of the measured relative rate constants vs. the number of CH₂ groups per molecule of the following acetates: methyl acetate, ethyl acetate, n-propyl acetate, butyl acetate and pentyl acetate.