Journal of Radioanalytical and Nuclear Chemistry

, Volume 134, Issue 1, pp 109–128 | Cite as

Electromigration of carrier-free radionuclides

13. Ion mobilities and hydrolysis of241Am−Am(III) in aqueous inert electrolytes
  • F. Rösch
  • T. Reimann
  • G. V. Buklanov
  • M. Milanov
  • V. A. Khalkin
  • R. Dreyer


The electromigration behaviour of carrier-free241Am−Am(III) in inert electrolytes, μ=0.1 (C10 4 ), T=298.1(1) K, was studied. On the basis of the overall ion mobilities of241Am−Am(III) on pH between pH 5.5 and 12.9, the stoichiometric hydrolysis constants p 3 β3 =23.8(9), and pK1=6.9(2) were obtained. For K4 a limitation of pK4≧14.4(3) was possible, because no formation of anionic hydrolysis products in solutions pH≦12.9 was registered. The individual ion mobility of the241Am−Am3+ decrease in the range pH 5.5–3 from +6.85(15) up to +5.50(15)·10−4 cm2·s−1·V−1. Dependences of this effect on overall ionic strength, inert electrolyte anion, and the temperature of the electrolytes were studied in acidic and neutral solutions.


Physical Chemistry Hydrolysis Inorganic Chemistry Radionuclide Ionic Strength 
These keywords were added by machine and not by the authors. This process is experimental and the keywords may be updated as the learning algorithm improves.


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Copyright information

© Akadémiai Kiadó 1989

Authors and Affiliations

  • F. Rösch
    • 1
    • 2
  • T. Reimann
    • 3
  • G. V. Buklanov
    • 1
  • M. Milanov
    • 1
  • V. A. Khalkin
    • 1
  • R. Dreyer
    • 3
  1. 1.Joint Institute for Nuclear ResearchDubna(USSR)
  2. 2.Department of Radioactive IsotopesCentral Institute of Nuclear ResearchDresden(GDR)
  3. 3.Department of ChemistryDresden University of Technology(GDR)

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