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

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


  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.



Entropy Selenate Thermodynamic Data Thermochemical Property H2SeO4 
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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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