Quantification of Magnesium and Differential Thermal Analysis of Electrolysis Materials
Department of Mechanical Engineering and Department of Chemistry
To establish the industrial viability for the electrolysis of MgO to Mg, the current efficiency of the process and the solubility of MgO in CaF2-MgF2 must be known. The current efficiencies of electrolytic cells of varying design were measured using charge passed from a potentiostat and Mg recovered from a quantification method using HCl. The current efficiencies were 82% and 83% with a platinum anode and 61%, 63%, and 71% with a graphite anode. The solubility of MgO in the electrolyte will be determined from a phase diagram prepared from differential thermal analysis. Data from colleagues in Slovakia shows that at least 1 mol% MgO can be dissolved in the electrolyte. To more precisely establish the solubility, the percent of MgO in the electrolyte will be expanded to include more values so that the emerging phase diagram near 1 mole% MgO is clarified.
Prusinski, William and Toberman, Jason, "Quantification of Magnesium and Differential Thermal Analysis of Electrolysis Materials" (2014). Symposium on Undergraduate Research and Creative Expression (SOURCE). 373.