Home Books eBooks Journals References & Proceedings Authors, Editors, Reviewers A-Z Product Index Awards
Advances in Molten Salts

ISSN:
1-56700-142-4 (Print)

Studies of oxide solubilities in molten KCl-LiCl at 700°C

V. L. Cherginets
Institute for Single Crystals of National Academy of Sciences of Ukraine, Lenin ave., 60, 310001, Kharkov

T. P. Rebrova
Institute for Single Crystals of National Academy of Sciences of Ukraine, Lenin ave., 60, 310001, Kharkov

Abstract

The reversibility of a membrane oxygen electrode Pt(02)IZr02(Y203) vs O2- and oxide solubilities in molten KCl-LiCl eutectic (0.4:0.6) at 700°C has been studied by potenti-ometric method. Solubility products of CoO (pP=4.43±0.11), NiO (pP=5.34+0.2), and MgO (pP=5.87±0.05) at 700°C have been determined. Acidic properties of Cd2+ and Pb2+ have been found to be completely levelled to those of Li+. The increase of oxide solubilities and shift of the inflection point on calibration plot as compared with molten KCl-NaCl and CsCl-KCl-NaCl was explained by the increase of acidic properties in the sequence Na+-Li+.