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Interactions between59Fe (14C)EDTA and soils containing calcium carbonate

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Abstract

Interaction between FeEDTA and calcareous soils was followed over a period of four weeks using a radiotracer technique, and a kinetic evaluation of the results was performed.59Fe served to determine the quantity of iron,14C to assay for EDTA and45Ca to measure calcium. During the experiment, i. e. within four weeks in case of the chernozem soil 61% and in case of the clayey meadow soil 51% of the iron chelate dissapeared from the solution. The loss in soluble iron was partly due to a rapid sorption process of about an hour and partly due to the slow decomposition of FeEDTA to Fe(OH)3. The two processes could be separated using the Christiansen equation.

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Authors and Affiliations

  1. Department of Chemistry, G. Bessenyei Teacher's Training College, P. O. Box 166, H-4401, Nyiregyháza, Hungary

    Á. Hargitai-Tóth

  2. Isotope Laboratory, L. Kossuth University, P. O. Box 8, H-4010, Debrecen, Hungary

    J. Kónya

Authors
  1. Á. Hargitai-Tóth
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  2. J. Kónya
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Hargitai-Tóth, Á., Kónya, J. Interactions between59Fe (14C)EDTA and soils containing calcium carbonate. Journal of Radioanalytical and Nuclear Chemistry Letters 155, 263–271 (1991). https://doi.org/10.1007/BF02168317

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  • DOI: https://doi.org/10.1007/BF02168317

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