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Thermodynamics of the complexation reactions of UO 2 2+ , Be2+ and Cu2+ with methoxybenzoic acids

  • B. D. Mali
  • L. D. Pethe
Physical and Theoretical

Abstract

The stability constants and thermodynamic parameters of complexation reactions of\(UO_2 ^{2 + } \), Be2+ and Cu2+ with some methoxybenzoic acids in 76% (v/v) dioxane water medium and μ = 0.1 M NaClO4 have been potentiometrically investigated. All the metal ions form 1: 1 complexes. The logK 1 varies linearly with mole fraction of dioxane but nonlinearly with the reciprocal of dielectric constant in the case of UO 2 2+ chelates. In all the complexes ΔG values follow the Basolo Pearson stability order: UO 2 2+ > Be2+ > Cu2+.

Keywords

Stability constants Gibbs-Helmholtz equation Born equation 

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References

  1. Born M 1920Z. Phys. 1 45CrossRefGoogle Scholar
  2. Irving H M and Rossotti H S 1953J. Chem. Soc. 3397Google Scholar
  3. Irving H M and Rossotti H S 1954J. Chem. Soc. 2904Google Scholar
  4. Mali B D and Pethe L D 1978aJ. Indian Chem. Soc. 55 846Google Scholar
  5. Mali B D and Pethe L D 1978bIndian J. Chem. A 16 364Google Scholar
  6. Van Uitert L G and Haas C G 1953J. Am. Chem. Soc. 75 451CrossRefGoogle Scholar
  7. Vogel V I 1956A text book of practical organic chemistry (London: Longmans Green) p. 177Google Scholar
  8. Vogel V I 1973A text book of quantitative inorganic analysis (London: Longmans Green)Google Scholar

Copyright information

© Indian Academy of Sciences 1979

Authors and Affiliations

  • B. D. Mali
    • 1
  • L. D. Pethe
    • 1
  1. 1.Department of ChemistryMarathwada UniversityAurangabad

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