A ZnSO4 electrolyte solution with impuritysalts suchas MnSO4 and MgSO4 is often used in zinc hydrometallurgicalprocesses over a wide temperature range. CaSO4 center dot 2H(2)O(s) scaling and fluorine corrosion are two encountered problemsin the process. Understanding the CaF2(s) solubility behaviorin MSO4 (M = Zn, Mn, Mg) aqueous solutions at various temperatureshelps remove Ca2+ and F- ions from thesolution. However, CaF2(s) solubility data, especiallyat temperatures >298 K, have not been published yet. In this work,CaF2(s) solubilities in the CaF2-CaSO4-MSO4-H2O (M = Zn, Mn,Mg) quaternary sy...
