Dissolution Behavior of Indium in CaO-SiO2-Al2O3 Slag

The solubility of indium in a molten CaO-SiO2-Al2O3 system was measured at 1773 K (1500 °C) to establish the dissolution mechanism of indium under a highly reducing atmosphere. The solubility of indium increases with increasing oxygen potential, whereas it decreases with increased activity of basic oxide. Therefore, a dissolution mechanism of indium can be constructed according to the following equation:\documentclass[12pt]{minimal} \usepackage{amsmath} \usepackage{wasysym} \usepackage{amsfonts} \usepackage{amssymb} \usepackage{amsbsy} \usepackage{mathrsfs} \usepackage{upgreek} \setlength{\oddsidemargin}{-69pt} \begin{document}$$ {\text{In}}({\text{s}}) + \frac{1}{4}{\text{O}}_{2} ({\text{g}}) = ({\text{In}}^{ + } ) + \frac{1}{2}({\text{O}}^{2 - } ) $$\end{document}