Korean Institute of Surface Engineering

pISSN : 1225-8024 | eISSN : 3399-8403

공학

한국표면공학회지 (23권4호 225-229)

Calculations of Solubility Preduct Constants for Metal Oxides in the KCI-LiCl Eutectic Composition by Exact Thermodynamic Cycle

KCl-LiCl 공정 용융염욕에서 열역학적 싸이클법에 의한 금속산화물의 용해도적 계산

백영현;

고려대학교 금속공학과;

Abstract

Solubility Products of metal oxides, such as Al2O3 and UO2 in KCl-LiCl eutectic composition was calculated by using an exact an exact thermodynamic. The values for Al2O3 ThO2 and UO2 were found to be 2.51$ imes$10-27, 4.97$ imes$10-15and 2.17$ imes$10-12in mole per liter basis at 743 K, respectively. The correlation of theoretical values with those of experiment were in good agreement. It is worth to note that the exact cycle method was proved to be satisfactory in making predictions of solubillities and also solubility products of sparingly soluble metal oxides in an ionic salt system.

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