Fourier transform infrared study of the hydroxyl radical initiated oxidation of sulfur dioxide

摘要: To elucidate the atmospheric fate of HOSO/sub 2/ radicals formed via HO + SO/sub M ..-->.. M, photolysis mixtures containing Cl/sub (20 ppM), H/sub (1000 and NO (5 ppM) in 700 torr purified air was studied by using long path FT IR method. absorption bands corresponding to those slightly hydrated liquid 2/SO/sub 4/ were detected situ during due formation air-borne aerosols. A /sup 15/NO-labeling experiment also used examine possible sulfur- nitrogen-containing products, e.g., HO(SO/sub 2/)ONO 2/)ONO/sub 2/. The results negative. Thus, these nitrogenous sulfuric acids do not appear serve as a significant sink for NO/sub x/ atmosphere. 3 figures.