An investigation on sulphation of cupric oxide by three different sulphates is reported in this paper. The oxide has been mixed with sulphates, the mixture heated to a predetermined temperature (288-343 K) and then held for a specific time (upto 3 hours). Subsequently, the reacted mixture has been leached with water for estimation of copper sulphate formed. A method is indicated for delineation of the extent of conversion at different steps. The reaction al elevated temperatures follows the Ginstling Brounshtein model and has a minor role. The hydrated ferric sulphate is a better sulphating agent compared to the anhydrous ferric sulphate, ferrous sulphate and ammonium sulphate.
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