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Partition of the Quaternary Reciprocal System Na,K∥Cl,I,CrO4 and Investigation of Its Stable Elements

  • Physicochemical Analysis of Inorganic Systems
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Abstract

Investigation of multicomponent salt systems is important in the context of the wide use of invariant mixtures as electrolytic media for separation of metals and heat-storage materials. In this work, the quaternary reciprocal system Na,K∥Cl,I,CrO4 was partitioned into simplexes using graph theory. The tree of phases of the system was constructed, and stable elements were determined. The stable tetrahedron NaCl–KCl–KI–K2CrO4 of the system Na,K∥Cl,I,CrO4 was studied by differential thermal analysis. In the stable tetrahedron, the melting point and composition (equiv. %) of a quaternary eutectic were found: (0.25% KCl, 42.40% NaCl, 30.92% KI, 26.43% K2CrO4; 451°C).

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Authors and Affiliations

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

    E. M. Egorova, S. S. Likhacheva & I. K. Garkushin

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  1. E. M. Egorova
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  2. S. S. Likhacheva
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  3. I. K. Garkushin
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Correspondence to E. M. Egorova.

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Russian Text © E.M. Egorova, S.S. Likhacheva, I.K. Garkushin, 2019, published in Zhurnal Neorganicheskoi Khimii, 2019, Vol. 64, No. 2, pp. 201–205.

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Egorova, E.M., Likhacheva, S.S. & Garkushin, I.K. Partition of the Quaternary Reciprocal System Na,K∥Cl,I,CrO4 and Investigation of Its Stable Elements. Russ. J. Inorg. Chem. 64, 247–250 (2019). https://doi.org/10.1134/S0036023619020049

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  • DOI: https://doi.org/10.1134/S0036023619020049

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