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Investigation of solubitity in the reciprocal system CaSO4 - KCl - H2O at 55°

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Bulletin of the Academy of Sciences of the USSR, Division of chemical science Aims and scope

Summary

  1. 1.

    A study has been made of the solubility relations at 55° in the reciprocal system;

    $$[CaSO_4 + 2KCl \rightleftarrows K_2 SO_4 + CaCl_2 ] - H_2 O$$

    and in the ternary systems:

    $$KCl - CaCl_2 - H_2 O;CaSO_4 - CaCl_2 - H_2 O;CaSO_4 - K_2 SO_4 - H_2 O.$$
  2. 2.

    In the reciprocal system 7 fields of crystallization have been established, and of these 3 correspond to double salts; syngenite, K2SO4·CaSO4·H2O; potassium pentacalcium sulfate, 5CaSO4·K2SO4·H2O; and hydrophylite, KCl·CaCl2.

  3. 3.

    The formation of calcium chloride proceeds owing to the formation of the difficultly soluble double salt, syngenite.

  4. 4.

    Lowering of temperature favors the double-decomposition reactions.

  5. 5.

    The occurrence of calcium chloride in the zone of crystallization of potassium salts in the Solikam deposits may be explained, as can also other metamorphization reactions, by the double-decomposition reaction studied.

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Literature cited

  1. H. Struve. Z. Chem. 5, 323 (1869).

    Google Scholar 

  2. D. Krull. JKali 17, H. 6, 67 (1933).

    Google Scholar 

  3. A. E. Hill, J. Am. Chem. Soc., 59, 2242 (1937).

    Google Scholar 

  4. D.N. Shoykhet and E.I. Lukyanova. Collected Researches of the Workers of the State Inst. of Applied Chem., 34 (1940).

  5. W.J. Lightfoot and C.F. Prutton. J. Am. Chem. Soc. 69, No. 9, 2098 (1947).

    Google Scholar 

  6. G.H. Assarsson, J. Am. Chem. Soc. 72, No. 4 (1950).

  7. E.P. Dergunov and A.G. Bergman. Proc. Acad. Sci. USSR, 75, No. 6, 815 (1950).

    Google Scholar 

  8. J.H.van't Hoff. Ocean Salt Deposits (1936).

  9. V.H. Sveshnikova. Bull. Section Phys. Chem. Anal. 17, 345 (1949).

    Google Scholar 

  10. N.S.Kurnakov. Magnesia Lakes of the Perekop Group. Bull. Acad. Sci., Petrogard, 137 (1917).

  11. G.G.Yrazov. Investigation of the Lakes of S. Russia. (1919).

  12. Yu.V.Morachevsky. Notes on the Geochemistry of the Higher Kama Salt Deposits. (1939).

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Authors and Affiliations

  1. Kurnakov Institute of General and Inorganic Chemistry USSR Academy of Science, USSR

    V. N. Sveshnikova

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  1. V. N. Sveshnikova
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Sveshnikova, V.N. Investigation of solubitity in the reciprocal system CaSO4 - KCl - H2O at 55°. Russ Chem Bull 1, 45–53 (1952). https://doi.org/10.1007/BF01176571

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  • DOI: https://doi.org/10.1007/BF01176571

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