Abstract
A kinetics and morphological study of the reaction of pure SO2 with copper over the temperature range 500–950°C showed that only Cu2S formed despite the fact that thermodynamic ally its formation is not expected. Alternatively, the formation of Cu2O, expected from the Cu-O-S diagram did not occur during sulfidation; however, its evaporation was observed in an atmosphere of pure SO2 at high temperature. Thus copper differs from others metals such as nickel or cobalt by its low reactivity with SO2 compared to the oxidation reaction; therefore, it was possible to follow the beginning of sulfidation.
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Toumi, C., Gillot, B. Corrosion in SO2 of pure and preoxidized copper at high temperature. Oxid Met 16, 221–242 (1981). https://doi.org/10.1007/BF00603833
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DOI: https://doi.org/10.1007/BF00603833