Thermodynamic Studies of MnS and FeS by CaF₂ Solid Electrolyte Galvanic Cell Technique

Abstract

Modified galvanic cell arrangements using CaF₂ solid electrolytes have been used to measure the sulphur potential of Mn-MnS and of Fe-FeS.
The galvanic cell used were:
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The data can be represented as a linear function of temperature:
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The standard molar free energies of formation of MnS and FeS were calculated using the data of the standard molar free energy of formation of Ag₂S reported by Thompson and Flengas:
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\ oindentThe results were compared with reported values.