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Gravimetric determination of uranyl ion with 2-hydroxy-1-naphthaldehyde /2H-1N/

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Abstract

The precipitation of uranyl ion with 2-hydroxy-1-naphthaldehyde /2H−1N=HL/ was studied. The solid complex /orange crystals/ was characterized by IR, UV-Vis spectra. Uranium was determined as U3O8 after calcination of the complex at 850°C /37.78% U experimental, 36.64% U calculated for C22H14O6U, UO2L2/. Using a statistical experimental design, the best conditions for quantitative precipitation were obtained. A gravimetric method for the determination of UO 2+2 is proposed by weighing the complex after drying at 110°C.

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Authors and Affiliations

  1. Instituto de Investigaciones Científicas, Universidad de Guanajuato, L. de Retana No. 5, 36000, Guanajuato, Gto., Mexico

    P. L. López-de-Alba & S. García González

  2. Facultad de Química, Universidad de Guanajuato, L. de Retana No. 5, 36000, Guanajuato, Gto., Mexico

    J. Gómez Lara

Authors
  1. P. L. López-de-Alba
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  2. S. García González
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  3. J. Gómez Lara
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On leave from Instituto de Química, U.N.A.M.

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López-de-Alba, P.L., García González, S. & Gómez Lara, J. Gravimetric determination of uranyl ion with 2-hydroxy-1-naphthaldehyde /2H-1N/. Journal of Radioanalytical and Nuclear Chemistry Letters 136, 203–210 (1989). https://doi.org/10.1007/BF02164120

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  • DOI: https://doi.org/10.1007/BF02164120

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