Russian Journal of Inorganic Chemistry

, Volume 64, Issue 7, pp 899–906 | Cite as

Partition of the Quaternary Reciprocal System Na,Rb||F,I,CrO4 and Investigation of the Stable Tetrahedron NaF–RbI–RbF–Rb2CrO4

  • A. V. BabenkoEmail author
  • E. M. Egorova
  • I. K. Garkushin


The quaternary reciprocal system Na,Rb||F,I,CrO4 was studied, low-melting mixtures based on which are promising as fusible electrolytes for chemical current sources, heat-storage materials, and media for growing single crystals. The system was partitioned into simplexes using graph theory, and the tree of phases of the system was constructed. The tree of phases is linear and contains four stable tetrahedra sharing stable cutting triangles. The combined stable tetrahedron NaF–RbI–RbF–Rb2CrO4 was investigated by differential thermal analysis. The crystallization surface of this stable tetrahedron is represented by the volumes of sodium fluoride, rubidium iodide, rubidium fluoride, rubidium chromate, and the compound Rb3CrO4F. Monovariant equilibrium lines meet at two quaternary invariant points: eutectic E491 and peritectic P508.


phase equilibria differential thermal analysis invariant equilibrium eutectic peritectic 



This work was performed within the framework of the basic part of the state assignment for the Samara State Technical University, Samara, Russia (project no. 4.5534.2017/8.9).


  1. 1.
    T. Mancini, Advantages of Using Molten Salt (Sandia National Laboratories, Albuquerque, NM, 2006). Scholar
  2. 2.
    J. Uhlíř, J. Nucl. Mater. 360, 6 (2007). CrossRefGoogle Scholar
  3. 3.
    A. Dinker, M. Agarwal, and G. D. Agarwal, J. Energy Inst. 90, 1 (2017). CrossRefGoogle Scholar
  4. 4.
    Zh. Zhihang, T. A. Mohammad, and M. T. O. Amanullah, Energy Procedia 110, 243 (2017). CrossRefGoogle Scholar
  5. 5.
  6. 6.
    I. K. Garkushin, E. O. Ignat’eva, and E. M. Dvoryanova, Russ. J. Inorg. Chem. 57, 732 (2012). CrossRefGoogle Scholar
  7. 7.
    A. V. Burchakov, E. M. Dvoryanova, and I. M. Kondratyuk, Russ. J. Inorg. Chem. 60, 511 (2015). CrossRefGoogle Scholar
  8. 8.
    A. S. Trunin, I. K. Garkushin, K. Yu. Voronin, et al., USSR Inventor’s Certificate no. 1089100, Byull. Izobret., No. 16 (1984).Google Scholar
  9. 9.
    A. A. Salamatkina and E. M. Bekhtereva, in Proceedings of the VI All-Russian Conference of Young Scientists, Postgraduates, and Students with International Participation “Mendeleev-2012,” St. Petersburg, 2012, p. 510 [in Russian].Google Scholar
  10. 10.
    A. A. Salamatkina, in Proceedings of the III Conference of Young Scientists on General and Inorganic Chemistry, Moscow, 2013, p. 107 [in Russian].Google Scholar
  11. 11.
    N. K. Voskresenskaya, N. N. Evseeva, S. I. Berul’, and I. P. Vereshchetina, A Handbook of Melting of Anhydrous Inorganic Salt Systems (Akad. Nauk SSSR, Moscow, 1961), Vol. 1 [in Russian].Google Scholar
  12. 12.
    I. M. Kondratyuk, E. M. Dvoryanova, and I. K. Garkushin, Izv. Samarsk. Nauch. Tsentra Ross. Akad. Nauk. Khim. Khim. Tekhnol., 12 (2004).Google Scholar
  13. 13.
    A. V. Burchakov, E. M. Bekhtereva, and I. M. Kondratyuk, Butlerovsk. Soobshch. 39, 40 (2014).Google Scholar
  14. 14.
    E. O. Ignat’eva, E. M. Dvoryanova, and I. K. Garkushin, Vestn. Irkutsk. Gos. Tekh. Univ., 57, 153 (2011).Google Scholar
  15. 15.
    Melting Diagrams of Salt Systems, Part II: Binary Systems with Common Anion, Ed. by V. I. Posypaiko and E. A. Alekseeva (Khimiya, Moscow, 1977). [in Russian].Google Scholar
  16. 16.
    O. Ore, Theory of Graphs (American Mathematical Society, Providence, RI, 1962).CrossRefGoogle Scholar
  17. 17.
    Thermal Constants of Substances: Handbook, Issue X, part 1: Tables of Accepted Values: Li, Na, Ed. by V. P. Glushko (VINITI, Moscow, 1981) [in Russian].Google Scholar
  18. 18.
    Thermal Constants of Substances: Handbook, Issue X, part 2: Tables of Accepted Values: K, Rb, Cs, Fr, Ed. by V. P. Glushko (VINITI, Moscow, 1981) [in Russian].Google Scholar
  19. 19.
    I. K. Garkushin, T. V. Gubanova, A. S. Petrov, and B. V. Anipchenko, Phase Equilibria in Systems Containing Metavanadates of Some Alkali Metals (Mashinostroenie-1, Moscow, 2005) [in Russian].Google Scholar
  20. 20.
    V. I. Kosyakov, V. A. Shestakov, and E. V. Grachev, Russ. J. Inorg. Chem. 63, 318 (2017). CrossRefGoogle Scholar

Copyright information

© Pleiades Publishing, Ltd. 2019

Authors and Affiliations

  • A. V. Babenko
    • 1
    Email author
  • E. M. Egorova
    • 1
  • I. K. Garkushin
    • 1
  1. 1.Samara State Technical UniversitySamaraRussia

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