Abstract

Abstract Photooxidation of the toluene (34 ppm)–NO2(8–207 ppm)–N2 and/or O2(1 atm) system has been studied in a 67 dm3 reaction chamber. The reaction was initiated by O(3P) atoms formed in the photolysis of NO2. The main products were benzaldehyde, cresols, benzyl nitrate, m-nitrotoluene, 6-nitro-o-cresol, and 2-nitro-p-cresol. Their relative yields were studied as functions of reactant concentrations. The formation mechanisms of the products were proposed on the basis of the reactions of O(3P) and OH radicals with toluene in the presence of NO2 and O2.

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