A Thermodynamic Study of the Systems Ni&ndash;S and Co&ndash;S by CaF<SUB>2</SUB> Solid Electrolyte Galvanic Cell Technique

Abstract

Electromotiveforce measurements of the following galvanic cells were carried out using CaF2 solid electrolyte:From the emf and the standard free energy of formation of reference electrode, the sulfur pressure of the system Ni-S in the range of 20-47 mol%S and 801-1372K and of the system Co-S at 35 mol%S and 995-1322K was calculated. The results were compared with those by other investigaters.