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Speciation of the products resulted from the reaction of51Cr(VI) with concentrated perchloric and trifluoromethanesulfonic acids

  • Radiochemical Methods and Production of Radionuclides
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Abstract

The speciation of the products from the reaction of51Cr(VI) with concentrated perchloric and trifluoromethanesulfonnic acids was carried out by ion chromatography, using HCIO4 and Ca(CIO4)2 as eluents. The reaction (1 h) of high specific activity51Cr(VI) with 99% CF3SO3H produces 47.6% of the51Cr as a 3+ species (hexaaquochromium(III), 27.6% as a 2+ species and 1.7% as a 1+ species. The reaction with 70% HClO4 gave 82.5% of the51Cr as a 3+ species, 14.0% as a 2+ species and 2.9% as a 1+ species. The 1+ and 2+ species undergo slow reactions to give the hexaaquo form.

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Authors and Affiliations

  1. Instituto de Química, Universidade Estadual de Campinas, Caixa Postal 6154, 13083-970, Campinas, SP, Brazil

    S. H. Pezzin, C. H. Collins & K. E. Collins

  2. Instituto de Ciencias Nucleares, Universidad Nacional Autónoma de México, Apartado Postal 70-543, 04510, México, D.F., México

    C. Archundia

Authors
  1. S. H. Pezzin
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  2. C. H. Collins
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  3. C. Archundia
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  4. K. E. Collins
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Pezzin, S.H., Collins, C.H., Archundia, C. et al. Speciation of the products resulted from the reaction of51Cr(VI) with concentrated perchloric and trifluoromethanesulfonic acids. J Radioanal Nucl Chem 236, 209–212 (1998). https://doi.org/10.1007/BF02386344

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  • DOI: https://doi.org/10.1007/BF02386344

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