Journal
RUSSIAN JOURNAL OF INORGANIC CHEMISTRY
Volume 51, Issue 3, Pages 484-487Publisher
MAIK NAUKA/INTERPERIODICA/SPRINGER
DOI: 10.1134/S0036023606030247
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ZnO solubility (pP = 4.77 +/- 0.1) and CdO solubility (pP = 1.46 +/- 0.1) in KCl-LiCl melts at 700 C are determined using the sequential additions method with the potentiometric control of the equilibrium oxide ion concentration. Cadmium oxide is a strong base; it fully dissociates in unsaturated solutions. Zinc oxide is a weak base (pKZnO = 2.89 +/- 0.15). As the acidic properties of an ionic solvent strengthen with a fixed anionic composition, the solubilities of the oxides increase in correlation with their basicity index; the surface energy at the interface between the solid oxide and ionic melt decreases in association.
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