Thermochemical properties of sparingly soluble selenates and entropy of aqueous selenate ion

  • N. M. Selivanova
  • A. F. Kapustinskii
  • G. A. Zubova
Article

Summary

  1. 1.

    As a result of the measurements described in our article it has been found that for the reaction Basolid + Sesolid + 2O2=BaSeO4, ΔH298=-279.2 Cal/mole and ΔF298=-249.1 Cal/mole; and for the reaction Pbsolid + Sesolid + 2O2=PbSeO4 ΔH298 == -148.7 Cal/mole and ΔF298=-120.5 Cal/mole.

     
  2. 2.

    From the thermodynamic data for H2SeO4, SrSeO4, BaSeO4, PbSeO4, and Tl2SeO4 the average value of the entropy of the aqueous SeO 4 2− ion is S=5.5 ± 0.3 entropy units.

     

Keywords

Entropy Selenate Thermodynamic Data Thermochemical Property H2SeO4 

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Literature cited

  1. [1]
    A. F. Kapustinskii and N. M. Selivanova, J. Phys. Chem. 23, 1508 (1949).Google Scholar
  2. [2]
    N. M. Selivanova and A. F. Kapustinskii, J. Phys. Chem. 26, 565 (1953).Google Scholar
  3. [3]
    M. S. Sherill and E. F. Izard, J. Amer. Chem. Soc. 50, 1665 (1928).Google Scholar
  4. [4]
    F. Rossini, D. Wagman, W. Evans, S. Levine, and I. Jaffe, Selected values of chemical thermodynamic properties, Bureau of Standards Washington, 1952.Google Scholar
  5. [5]
    N. M. Selivanova and G. A. Zubova, J. Phys. Chem. (In press).Google Scholar
  6. [6]
    M. K. Metzner, Compt. Rend. 123, 999 (1896).Google Scholar
  7. [7]
    M. K. Metzner, Ann. Chim. Phys. 15, (7), 203 (1898).Google Scholar
  8. [8]
    I. Thomsen, Thermochemische Untersuchungen. Bd. II, Leipzig, 1882, 269.Google Scholar
  9. [9]
    J. Jannek and I. Meyer, Z. anorgan. und allgem. Chem. 83, 51 (1913).Google Scholar
  10. [10]
    N. M. Selivanova, Trans. D. I. Mendeleev MKhTI, 17, 34 (1952).Google Scholar
  11. [11]
    N. M. Selivanova and R. Ya. Boguslavskii. J. Phys. Chem. 29, 128 (1955).Google Scholar
  12. [12]
    D. F. Adams and L. I. Gilberston, Industr. and Engng. Chem. 14, 926 (1942).Google Scholar
  13. [13]
    A. F. Kapustinskii and K. B. Yatsimirskii, J. Phys. Chem. 22, 1272 (1948).Google Scholar
  14. [14]
    N. M. Selivanova, J. Phys. Chem. 32, 1277 (1958).Google Scholar
  15. [15]
    W. Latimer, J. Amer. Chem. Soc. 43, 818 (1921).Google Scholar
  16. [16]
    W. Latimer, Oxidizing States of the Elements and Their Potentials in Aqueous Solutions, Translated under Ed. K. V. Astakhov, M., 1954.Google Scholar

Copyright information

© Consultants Bureau Inc. 1960

Authors and Affiliations

  • N. M. Selivanova
    • 1
  • A. F. Kapustinskii
    • 1
  • G. A. Zubova
    • 1
  1. 1.D. I. Mendeleev Chemicotechnological InstituteUSSR

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