Skip to main content
SpringerLink
Log in

Thermodynamics of Sodium Uranoniobate and Its Monohydrate

  • Published:
Russian Journal of General Chemistry Aims and scope Submit manuscript

Abstract

Reaction calorimetry was used to determine standard enthalpies of formation at 298.15 K for crystalline NaNbUO6 (-2580.0±2.0 kJ/mol) and NaNbUO6·H2O (-2876.5±1.5 kJ/mol). The heat capacities of these compounds were studied in the range 80-300 K by adiabatic vacuum calorimetry, and their thermodynamic functions were calculated. Standard entropies (-540.5±4.1 and -730.6±4.1 J mol- 1 K- 1) and Gibbs functions of formation at 298.15 K (-2419.0±2.0 and -2658.5±2.5 kJ/mol) for NaNbUO6 and NaNbUO6. H2O, respectively, were calculated. Thermodynamic functions for a number of reactions yielding these compounds were calculated and examined.

This is a preview of subscription content, log in via an institution to check access.

Access this article

Log in via an institution

Price excludes VAT (USA)
Tax calculation will be finalised during checkout.

Instant access to the full article PDF.

Institutional subscriptions

Similar content being viewed by others

REFERENCES

  1. Suleimanov, E.V., Cand. Sci. (Chem.) Dissertation, Nizhni Novgorod, 1994.

  2. Gibalo, I.M., Analiticheskaya khimiya niobiya i tantala (Analytical Chemistry of Niobium and Tantalum), Moscow: Nauka, 1967.

    Google Scholar 

  3. Termicheskie konstanty veshchestv: spravochnik (Thermal Constants of Substances: Handbook), Glushko, V.P., Ed., Moscow: Nauka, 1981, issue X, part II.

    Google Scholar 

  4. Termicheskie konstanty veshchestv: spravochnik (Thermal Constants of Substances: Handbook), Glushko, V.P., Ed., Moscow: Nauka, 1981, issue VIII, part I.

    Google Scholar 

  5. Termicheskie konstanty veshchestv (Thermal Constants of Substances), Glushko, V.P., Ed., Moscow: Nauka, 1981, issue X, part I.

    Google Scholar 

  6. Codata Key Values, J. Chem. Thermodyn., 1975, vol. 7, no. 1, pp. 1-3.

  7. Kelley, K.K., Parks, G.S., and Huffman, H.M., J. Phys. Chem., 1929, vol. 33, p. 1802.

    Google Scholar 

  8. Parks, G.S., Shomate, C.H., Kennedy, W.P., and Crawford, B.I., J. Chem. Phys., 1937, vol. 5, p. 359.

    Google Scholar 

  9. Termicheskie konstanty veshchestv: spravochnik (Thermal Constants of Substances: Handbook), Glushko, V.P., Ed., Moscow: Nauka, 1974, issue VII, part I.

    Google Scholar 

  10. Termicheskie konstanty veshchestv: spravochnik (Thermal Constants of Substances: Handbook), Glushko, V.P., Ed., Moscow: Nauka, 1968, issue III.

    Google Scholar 

  11. Karyakin, N.V., Khimicheskaya termodinamika (Chemical Thermodynamics), Nizhny Novgorod, 1992, part 2.

Download references

Author information

Authors and Affiliations

  1. Lobachevskii Nizhny Novgorod State University, Nizhny Novgorod, Russia

    N. V. Karyakin, N. G. Chernorukov, E. V. Suleimanov, V. L. Trostin, M. I. Alimzhanov & A. V. Makarov

Authors
  1. N. V. Karyakin
    View author publications

    You can also search for this author in PubMed Google Scholar

  2. N. G. Chernorukov
    View author publications

    You can also search for this author in PubMed Google Scholar

  3. E. V. Suleimanov
    View author publications

    You can also search for this author in PubMed Google Scholar

  4. V. L. Trostin
    View author publications

    You can also search for this author in PubMed Google Scholar

  5. M. I. Alimzhanov
    View author publications

    You can also search for this author in PubMed Google Scholar

  6. A. V. Makarov
    View author publications

    You can also search for this author in PubMed Google Scholar

Rights and permissions

Reprints and permissions

About this article

Cite this article

Karyakin, N.V., Chernorukov, N.G., Suleimanov, E.V. et al. Thermodynamics of Sodium Uranoniobate and Its Monohydrate. Russian Journal of General Chemistry 71, 1513–1517 (2001). https://doi.org/10.1023/A:1013918029023

Download citation

  • Issue Date:

  • DOI: https://doi.org/10.1023/A:1013918029023

Keywords

Search

Navigation