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Liquid-liquid extraction of thorium (IV) with hexaacetato calix(6)arene

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Abstract

Thorium(IV) was quantitatively extracted at pH 7.5 with 0.0001M of hexaacetato calix(6)arene in toluene and after stripping with 0.05M nitric acid, it was determined spectrophotometrically at 545 nm with thoron. Thorium(IV) was separated from commonly associated elements in fission products like uranium(VI), cesium(I), lead(II), strontium(II) and cerium(IV) in varying proportions. The method is simple, rapid, selective and applicable for the microgram concentrations of thorium(IV).

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Authors and Affiliations

  1. Department of Chemical Technology, University of Bombay, 400 019, Bombay, India

    D. D. Malkhede, P. M. Dhadke & S. M. Khopkar

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  1. D. D. Malkhede
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  2. P. M. Dhadke
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  3. S. M. Khopkar
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Malkhede, D.D., Dhadke, P.M. & Khopkar, S.M. Liquid-liquid extraction of thorium (IV) with hexaacetato calix(6)arene. J Radioanal Nucl Chem 241, 179–182 (1999). https://doi.org/10.1007/BF02347307

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  • DOI: https://doi.org/10.1007/BF02347307

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