Reactions between the SO4·- radical and some common anions in atmospheric aqueous droplets


OUYANG Bin , FANG Hao-jie , ZHU Cheng-zhu , DONG Wen-bo , HOU Hui-qi

DOI:

Received ,Revised , Accepted , Available online

Volume 17,2005,Pages 786-788

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The rate constants of reactions between the SO4·- radical and some common anions in atmospheric aqueous droplets e.g. Cl-,NO3-, HSO3- and HCO3- were determined using the laser flash photolysis technique. Absorption spectra of SO4·- and the product radicals were also reported. The chloride ion was evaluated among all the anions to be the most efficient scavenger of SO44·- . The results may supply useful information for a better understanding of the vigorous radical-initiated reactions in atmospheric aqueous droplets such as clouds, rains or fogs.

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