Czechoslovak Journal of Physics

, Volume 49, Supplement 1, pp 151–157 | Cite as

Phase behavior of Eu(III) in fulvic acid-Fe(III)−H20 system at pH 1–9

  • E. K. Legin
  • Yu. I. Trifonov
  • M. L. Khokhlov
  • D. N. Suglobov
Part 1 Radionuclides in the Environment, Radioecology


The method was developed allowing quantitative extraction of fulvic acids from soil samples in the form close to native. Formation of gel-like and soluble forms of iron(III) fulvates in the systems containing equivalent amounts of iron(III) and fulvic acid was studied within pH range 1–9. The molecular structure of fulvates and the mechanism of transformation of gel to soluble forms was analyzed by IR spectroscopy. Distribution of microamounts of europium between gel-like iron fulvates and their solutions was studied. The correlation between phase distribution of europium and solubilization of iron(III) fulvates was analyzed.


Fulvic Acid Soluble Form Phase Behavior Fulvate Khlopin Radium Institute 


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Copyright information

© Institute of Physics, Acad. Sci. CR 1999

Authors and Affiliations

  • E. K. Legin
    • 1
  • Yu. I. Trifonov
    • 1
  • M. L. Khokhlov
    • 1
  • D. N. Suglobov
    • 1
  1. 1.Khlopin Radium Institute Research and Production AssociationSt. PetersburgRussia

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