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Sorption characteristics of iodide on chalcocite and mackinawite under pH variations in alkaline conditions

In addition, when the alkalinity increased higher than a pH of 12, the sorption capacity of both minerals decreased dramatically, likely due to the competition of hydroxy ions with the iodide. This result confirmed that chalcocite was an especially good sorbing media for iodide under alkaline conditions with a pH value of less than 12. | Sorption characteristics of iodide on chalcocite and mackinawite under pH variations in alkaline conditions