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The oxidation of iodide by synthetic birnessite (δ-MnO 2 ) was studied in perchlorate media in the pH range 4–8. Iodine (I 2 ) was detected as an oxidation product that was subsequently further oxidized to iodate (IO 3− ). The third order rate constants, second order on iodide and first order on manganese oxide, determined by extraction of iodine in benzene decreased with...
The reactivity of hypoiodous acid (HOI) is an important factor for the fate of iodine in oxidative drinking water treatment. The possible reactions of HOI are its disproportionation, its oxidation to iodate (IO -3 ), or the reaction with natural organic matter (NOM). The latter reaction may result in the formation of iodoorganic compounds which are frequently responsible for taste and...
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