Journal of Thermal Analysis and Calorimetry

, Volume 107, Issue 2, pp 809–812 | Cite as

Heat capacity and thermodynamic properties of tellurites Yb2(TeO3)3, Dy2(TeO3)3 and Er2(TeO3)3



The experimental results obtained for the specific molar heat capacity of the tellurites Yb2(TeO3)3, Dy2(TeO3)3 and Er2(TeO3)3 are processed by the least squares method. The temperature dependence of the specific molar heat capacity derived is used to determine the thermodynamic properties: entropy \( \left( {\Updelta_{T\prime }^{T} S_{m}^{0} } \right), \) enthalpy \( \left( {\Updelta_{T\prime }^{T} H_{m}^{0} } \right) \) and Gibbs function \( \left( {\Updelta_{T\prime }^{T} G_{m}^{0} } \right) \) of the tellurites Yb2(TeO3)3, Dy2(TeO3)3 and Er2(TeO3)3.


Heat capacity Thermodynamic properties Tellurites of Yb2(TeO3)3, Dy2(TeO3)3, Er2(TeO3)3 


  1. 1.
    James G. Lange’s handbook of chemistry. 16th ed. New York: McGraw-Hill; 2005.Google Scholar
  2. 2.
    Panneerselvam GR, Krishnan RV, Nagarajan KK, Antony MP. Thermal expansion and heat capacity of dysprosium hafnate. J Therm Anal Calorim. 2010;101:169–73.CrossRefGoogle Scholar
  3. 3.
    Umlang V, Jansen A, Tierg P, Winsh S. Theorie und Praktische Anwendung von Complexbildern. Frankfurt am Main: Dechema; 1971.Google Scholar
  4. 4.
    Nazarenko J, Ermakov E. Analiticheskaya Khimia Selena i Telura. Moskow: Nauka; 1974.Google Scholar
  5. 5.
    Hillebrand W, Lundell G, Bright H, Hoffman J. Applied inorganic analysis. 2nd ed. New York: Wiley; 1953.Google Scholar
  6. 6.
    McNaughton J, Mortimer C. Differential scanning calorimetry. Moskow: Perkin-Elmer Corporation: Norvalk Connection; 1975.Google Scholar
  7. 7.
    Kafarov V. Cybernetic methods in chemistry and chemical technology. Sofia: Chemistry; 1976.Google Scholar
  8. 8.
    Vuchkov I, Stoyanov St. Mathematic modeling and optimization of technological objects. Sofia: Techniks; 1986.Google Scholar
  9. 9.
    Bojanov E, Vuchkov I. Statistical methods for modeling and optimization of multifactor objects. Sofia: Technics; 1973.Google Scholar
  10. 10.
    Kireev V. Metody practicheskih rasschetov v termodinamike chimicheskih reactsii. Moskow: Chimia; 1975.Google Scholar
  11. 11.
    Koumok V. Problema soglasovania metodov ocenki termodinamicheskih harakteristic. Novosibirsk: Nauka; 1987.Google Scholar
  12. 12.
    Kassenov B, Pashinkin A. Thermodynamics in inorganic the chemistry. Karaganda: Karagandindskii GU; 1989.Google Scholar
  13. 13.
    Gospodinov GG, Atanasova LG. Specific thermal and thermodynamic properties of the tellurites Fe2 (TeO3)3, Fe2TeO5 and Fe2Te4O11. J Therm Anal Calorim. 2008;91:655–7.CrossRefGoogle Scholar

Copyright information

© Akadémiai Kiadó, Budapest, Hungary 2011

Authors and Affiliations

  1. 1.Inorganic Chemical Technology DepartmentUniversity “Prof. Dr. Asen Zlatarov”-BurgasBurgasBulgaria
  2. 2.Inorganic and Analytic Chemistry DepartmentUniversity “Prof. Dr. Asen Zlatarov”-BurgasBurgasBulgaria

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