Study of the Speciation in the System UO22+–SO42––H2O by Means of the UV-VIS Spectrophotometry

  • Jakub Višňák
  • Aleš Vetešník
  • Karel Štamberg
  • Jiří Bok
Part of the Springer Geology book series (SPRINGERGEOL)


This work estimates speciation characteristics of the UO22+–SO42––H2O system by means of the analysis of UV-VIS absorption spectra of series of aqueous solutions of uranium(VI) (total molar concentration 0.05 mol·dm–3), sodium sulfate (varying concentration from 0 to 1.3 mol·dm–3), perchloric acid (to adjust pH = 2) and sodium perchlorate (to adjust ionic strength I in each series (between different series I varied from 0.7 mol·Kg–1 to 4.0 mol·Kg–1)). log β° for several complexes were estimated by SVD-based mathematical analysis of spectra. The existence of isomers of uranyl(VI)-sulfate complexes is discussed.


Coordinate Water Molecule Constant Ionic Strength Sodium Perchlorate Radioactive Waste Repository Sulfate Ligand 
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  1. Brown PL, Wanner H (1987) Predicted formation constants using the unified theory of metal ion complexation. Paris: OECD Nucl. Energy Agency 102 [5]Google Scholar
  2. Capewell SG, Hefter GT, May PM (1999) Association constants for the NaSO4– ion pair in concentrated caesium chloride solutions. Talanta 49: 25–30CrossRefGoogle Scholar
  3. Janz GJ, Oliver BG, Lakshminarayanan GR, Mayer GE (1970) Electrical Conductance, Diffusion, Viscosity, and Density of Sodium Nitrate, Sodium Perchlorate, and Sodium Thiocyanate in Concentrated Aqueous Solutions. J. Phys. Chem. 74 (6): 1285–1289CrossRefGoogle Scholar
  4. Johannson (1974) The Role of the Perchlorate Ion as Ligand in Solution. Coord. Chem. Rev., 12: 241–261 [4]CrossRefGoogle Scholar
  5. Gál M, Goggin PL, Mink J (1992) Vibrational spectroscopic studies of uranyl complexes in aqueous and non-aqueous solutions. Spectrochim. Acta A 48:121–132 [10]CrossRefGoogle Scholar
  6. Geipel G, Brachmann A, Brendler V, Bernhard G, Nitsche H (1996) Uranium(VI) sulfate complexation studied by time-resolved laser-induced fluorescence spectroscopy (TRLFS). Radiochim Acta 75:199–204 [16]CrossRefGoogle Scholar
  7. Grenthe I, Fuger J, Konigs RJM, Lemire RJ, Muller AB, Nguyen-Trung C, Wanner H (1992) Chemical Thermodynamics of Uranium, Vol. 1 of Chemical Thermodynamics. Amsterdam: Elsevier Science Publishers B. V.: 114, 241, 683, 715Google Scholar
  8. Grenthe I, Wanner H, Oesthols E (2000) Guidelines for the extrapolation to zero ionic strength. TDB-2, NEA [18]Google Scholar
  9. Guillaumont R, Fanghänel T, Fuger J, Grenthe I, Neck V, Palmer DA, Rand MH (2003) Update on the chemical thermodynamics of uranium, neptunium, plutonium, americium and technetium. Elsevier Science Publishers, AmsterdamGoogle Scholar
  10. Hennig C, Schmeide K, Brendler V, Moll H, Tsushima S, Scheinost AC (2007) EXAFS investigation of U(VI), U(IV), and Th(IV) sulfato complexes in aqueous solution. Inorg. Chem. 46: 5882–5892 [9]CrossRefGoogle Scholar
  11. Hennig C, Tsushima S, Brendler V, Ikeda A, Scheinost AC, Bernhard G (2008) Coordination of U(IV) and U(VI) sulfate hydrate in aqueous solution. Uranium Mining and Hydrogeology V: 625–635 [1]Google Scholar
  12. Hennig C, Ikeda A, Schmeide K, Brendler V, Moll H, Tsushima S, Scheinost AC, Skanthakumar S, Wilson R, Soderholm L, Servaes K, Görrler-Walrand C, Van Deun R (2008c) The relationship of monodentate and bidentate coordinated uranium(VI) sulfate in aqueous solution. Radiochim. Acta 96: 607–611 [14]CrossRefGoogle Scholar
  13. Koch W, Holthausen MC (2000) A Chemist’s Guide to Density Functional Theory. WILEY-VCH, Verlag GmbH, Weinheim [15]Google Scholar
  14. Lemire RJ, Fuger J, Nitsche H, Potter P, Rand MH, Rydberg J, Spahiu K, Sullivan JC, Ullman WJ, Vitorge P, Wanner H (2000) Chemical thermodynamics of neptunium and plutonium. Amsterodam, Holland: Elsevier Science B. V.Google Scholar
  15. Meinrath G (1998) Aquatic Chemistry of Uranium. A Review Focusing on Aspects of Environmental Chemistry. Freiberg On-line Geoscience Vol. 1: 8 [2]Google Scholar
  16. Moll H, Reich T, Hennig C, Rossberg A, Szabó Z, Grenthe I (2000) Solution coordination chemistry of uranium in the binary UO2 2+–SO4 2− and the ternary UO2 2+–SO4 2−–OH– system. Radiochim. Acta 88: 559–566 [7]Google Scholar
  17. Neuefeind J, Skanthakumar S, Soderholm L (2004) Structure of the UO2 2+–SO4 2− ion pair in aqueous solution. Inorg. Chem. 43:2422–2426 [11]CrossRefGoogle Scholar
  18. Nguyen-Trung C, Begun, GM, Palmer DA (1992) Aqueous uranium complexes. 2. Raman spectroscopic study of the complex formation of the dioxouranium(VI) ion with a variety of inorganic and organic ligands. Inorg. Chem. 31:5280–5287 [13]CrossRefGoogle Scholar
  19. Perry RH, Chilton CH (1973) Chemical Engineers’ Handbook, Fifth Edition, McGrawHillGoogle Scholar
  20. Šebera J (2009) Quantum-chemical interpretation of UV-VIS and fluorescence spectra of uranyl(VI)-sulfate complexes. Research report for SURAO (Radioactive Waste Repository Authority (Czech Republic)): 27–42 [12]Google Scholar
  21. Vercouter T, Vitorge P, Amekraz B, Moulin Ch (2008) Stoichiometries and thermodynamic stabilities for aqueous sulfate complexes of U(VI). Inorg. Chem. 47: 2180–2189 [8]CrossRefGoogle Scholar
  22. Vdovenko VM, Mashirov LG, Suglobov D N (1964) Infrared Spectra of Uranyl Perchlorate and its Crystal Hydrates: Coordination of the Perchlorate Ion. Soviet Radiochem. 6, 289–294 [3]Google Scholar

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© Springer-Verlag Berlin Heidelberg 2011

Authors and Affiliations

  • Jakub Višňák
    • 1
  • Aleš Vetešník
    • 1
  • Karel Štamberg
    • 1
  • Jiří Bok
    • 2
  1. 1.Department of Nuclear Chemistry, Faculty of Nuclear Sciences and Physical EngineeringCzech Technical University in PraguePrague 1Czech Republic
  2. 2.Faculty of Mathematics and Physics, Institute of PhysicsCharles University in PraguePrague 2Czech Republic

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