THERMODYNAMIC EQUILIBRIUM OF Cu-Fe-S-Cl-H_2O SYSTEM AND ITS POTENTIAL DIAGRAM

The Cu-Fe-S-Cl~--H_2O system has been thermodynamically analyzed in view of the principle that every component in a solution is in equilibrium each other, and then the potential-pH diagram of the chalcopyrite-Cl~--H_2O system has been constructed.The thermodynamic analysis indicated that a CuCl stable region may be occurred in correspondence with certain contents of Cl in solution,and does not appear beyond this limits of Cl content.The possible way to yield CuCl from the Cu-Fe-S-Cl~--H_2O system has also been discussed.