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Phase equilibrium and thermodynamic properties of silver-saturated compounds BiSI and Bi19S27I3 of the AgI–Bi–Bi2S3–BiSI system

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Abstract

The phase composition of alloys in the Ag–Bi–S–I system (in the region AgI–Bi–Bi2S3–BiSI) for Т ≤ 550 K was studied by physicochemical analysis methods. Equations of overall potential-forming reactions involving the BiSI and Bi19S27I3 phases were composed. The reactions were performed in the C|Ag|glass Ag3GeS3I|D|C electrochemical cells (C are inert (graphite) electrodes; Ag, D are the cell electrodes; D are the four-phase alloys of the system; and glass Ag3GeS3I is a membrane with pure Ag+ ion conductivity). The linear dependences of EMF of the cells in the range 485–525 K were used for calculating the standard thermodynamic properties of saturated solid solutions of the compounds BiSI and Bi19S27I3 in the AgI–Bi–Bi2S3–BiSI system.

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Authors and Affiliations

  1. National University of Water Management and Nature Resources Use, ul. Sobornaya 11, Rivne, 33000, Ukraine

    M. V. Moroz

  2. Lviv Polytechnic National University, ul. S. Bandery 12, Lviv, 79000, Ukraine

    M. V. Prokhorenko

Authors
  1. M. V. Moroz
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  2. M. V. Prokhorenko
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Correspondence to M. V. Moroz.

Additional information

Original Russian Text © M.V. Moroz, M.V. Prokhorenko, 2016, published in Elektrokhimiya, 2016, Vol. 52, No. 4, pp. 445–448.

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Moroz, M.V., Prokhorenko, M.V. Phase equilibrium and thermodynamic properties of silver-saturated compounds BiSI and Bi19S27I3 of the AgI–Bi–Bi2S3–BiSI system. Russ J Electrochem 52, 392–395 (2016). https://doi.org/10.1134/S102319351604008X

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  • DOI: https://doi.org/10.1134/S102319351604008X

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