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Thermodynamic properties of Ni-S melts between 700° and 1100°c

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Abstract

The vapor pressure of sulfur over Ni-S melts of various compositions was calculated from the equilibrium weight of the melt in gas streams of known H2S-H2 composition. The Gibbs-Duhem equation was used to calculate the activity of nickel and other thermodynamic properties. For the reaction: 3Ni(S) + S2(g) ⇌ Ni3S2(l) the suggested free energy rslationship is: ΔG° = -57,910 + 15.89T (800° to 1100°C). The Calculations were extrapolated to predict that for the reaction: Ni(s) + 1/2S2(g) ⇌ NiS(l), ΔG° = -26.730 + 10.5T (1000° to 1100°C)

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Authors and Affiliations

  1. National Research Coun-cil of Canada, Ottawa, Canada

    M. Nagamori (Post-Doctorate Fellow)

  2. Extraction Metallurgy Research Section, Mines Branch, Department of Energy, Mines and Resources, Ottawa

    T. R. Ingraham (Head)

Authors
  1. M. Nagamori
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  2. T. R. Ingraham
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Nagamori, M., Ingraham, T.R. Thermodynamic properties of Ni-S melts between 700° and 1100°c. Metall Trans 1, 1821–1825 (1970). https://doi.org/10.1007/BF02642777

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  • DOI: https://doi.org/10.1007/BF02642777

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