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Phase Equilibria in the LiF–LiCl–Li2CrO4–KCl Stable Tetrahedron of the Li,K||F,Cl,CrO4 Reciprocal Four-Component Systems

  • PHYSICOCHEMICAL ANALYSIS OF INORGANIC SYSTEMS
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An Erratum to this article was published on 20 December 2022

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Abstract

Four-component systems comprising alkali-metal halides and chromates are used as fused electrolytes for chemical current sources, heat-storage materials, media for the synthesis of various compounds, etc. The Li,K||F,Cl,CrO4 reciprocal four-component system has been analyzed. The system has been triangulated to simplexes using theory of graphs. The phase tree of the system has been designed and used to predict the number of compositions of crystallizing phases in the stable elements. The phases crystallizing in the LiF–KCl–K2CrO4 stable triangle were identified by X-ray powder diffraction. Phase equilibria in the LiF–LiCl–Li2CrO4–KCl stable tetrahedron have been studied by differential thermal analysis. The characteristics of the four-component eutectic alloy were determined (equiv. %): LiF, 1.0; LiCl, 29.8; Li2CrO4, 45.5; KCl, 23.7; melting point, 305°С.

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Funding

This work was supported by the Ministry of Education and Science of the Russian Federation in the frame of project No. 0778-2020-0005 of the State Assignment.

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Authors and Affiliations

  1. Samara State Technical University, 443100, Samara, Russia

    M. A. Demina, E. M. Egorova, I. K. Garkushin & E. O. Ignat’eva

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  1. M. A. Demina
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  2. E. M. Egorova
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  3. I. K. Garkushin
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  4. E. O. Ignat’eva
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Correspondence to E. M. Egorova.

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Translated by O. Fedorova

The original online version of this article was revised: The author’s affiliation should read as Samara State Technical University.

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Demina, M.A., Egorova, E.M., Garkushin, I.K. et al. Phase Equilibria in the LiF–LiCl–Li2CrO4–KCl Stable Tetrahedron of the Li,K||F,Cl,CrO4 Reciprocal Four-Component Systems. Russ. J. Inorg. Chem. 67, 1611–1616 (2022). https://doi.org/10.1134/S0036023622100436

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