A FTIR Spectroscopic Study of the Photooxidation of Acetaldehyde in Air
作者： Geert K. Moortgat , Robert D. McQuigg
DOI: 10.1007/978-94-009-6505-8_21
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摘要: Long path, Fourier transform infrared spectroscopy has been employed to study the mechanism of acetaldehyde photooxidation in dilute gaseous mixtures CH3CHO and Cl2/ (ppm level) air at 700 torr 25 °C. The concentrations reactants products (CO, CO2, H2C0, HCOOH, CH3OH, CH3OOH, CH3COOH, CH3COOOH, etc.) were studied as a function irradiation time ratio reactants. Black lamps (310–400 nm) and/or UVB fluorescent (280–360 used source. experimental data Computer simulated based on earlier quantum yield measurements currently accepted reaction rate constants elementary reactions. A explaining experimentally obtained results is presented. CH3COOH only generated photolysis, probably product HO2 + reaction. CH3COOOH (peracetic acid) detected Cl2/CH3CHO system. These imply that likely precursor which component natural precipitation troposphere.
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