Journal of Radioanalytical and Nuclear Chemistry
Volume/Issue:
Volume 134: Issue 1
Electromigration of carrier-free radionuclides 13. Ion mobilities and hydrolysis of241Am−Am(III) in aqueous inert electrolytes
Authors: F. Rösch, T. Reimann 3 , G. Buklanov 1 , M. Milanov 1 , V. Khalkin 1 , and R. Dreyer 3
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  • 1 Joint Institute for Nuclear Research Dubna (USSR)
  • 2 Central Institute of Nuclear Research Department of Radioactive Isotopes Rossendorf PSF 19 8051 Dresden (GDR)
  • 3 Dresden University of Technology Department of Chemistry (GDR)
DOI:
https://doi.org/10.1007/bf02047275
Page Count:
109–128
Publication Date:
17 Nov 1989
Online Publication Date:
14 Aug 2005
Article Category:
Research Article
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Abstract  

The electromigration behaviour of carrier-free241Am–Am(III) in inert electrolytes, =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 33 =23.8(9), and pK1=6.9(2) were obtained. For K4 a limitation of pK414.4(3) was possible, because no formation of anionic hydrolysis products in solutions pH12.9 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.

Cover Journal of Radioanalytical and Nuclear Chemistry
Journal of Radioanalytical and Nuclear Chemistry
Print ISSN:
0236-5731
Online ISSN:
1588-2780

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