Solubility Equilibrium of Silver(i) Oxide in Molten Lithium Nitrate-l-Potassium Nitrate Mixtures

Abstract

The solubility equilibrium of silver oxide has been investigated in molten mixtures of LiNO3 + KNOj, in the presence of water at controlled activity. The ranges of temperature and molar composition of the solvent mixtures were, respectively, 415-525 K and 30-59 mol % LiNO3. The dependence of the solubility of silver oxide on the composition of the solvent mixture has been interpreted on the basis of a recently developed quasi-Iatticc model for the dissolution processes of sparingly soluble ionic compounds in ionic melts.