Title

Investigation of the Mixed-metal Sulfide (Mn,Fe)S₂ by Analytical Electron Microscopy and Mössbauer Spectroscopy

Abstract

The solid solutions of the (Mn,Fe)S2 system have been prepared by a hydrothermal method. Microanalysis in a transmission electron microscope has indicated that the solubility of FeS2 in MnS2 is 6.0 (4) mol % and that the solubility of MnS2 in FeS2 is 3.9 (3) mol %. Mössbauer effect spectroscopy has shown that the manganese-rich solid solution contains high-spin divalent iron with a quadrupole interaction of 1.72 (2) mm/s and a chemical isomer shift of 0.96 (2) mm/s. The iron-rich phase contains only low-spin divalent iron with a quadrupole interaction of 0.63 (2) mm/s and an isomer shift of 0.42 (2) mm/s. The sulfur in the iron-rich material shows a tendency to oxidize to the sulfate ion upon standing in air for several days. © 1981 American Chemical Society.

Department(s)

Chemistry

Document Type

Article - Journal

Document Version

Citation

File Type

text

Language(s)

English

Rights

© 1981 American Chemical Society (ACS), All rights reserved.


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