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BACKGROUNDA batch electrochemical reactor with a rotating cylinder electrode is analysed for the transformation of sulfur dioxide into either sulfuric acid or colloidal sulfur.
RESULTSPotentiostatic experiments carried out at 30 °C and 500 rpm with 5 g L−1SO2 in 0.5 mol L−1H2SO4 conclude that −0.7 V, against SCE, represents an appropriate potential for the sulfur production at a 316 L stainless steel...