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Extraction of Scandium Nitrate and Thiocyanate Complexes Using Two-Phase Aqueous Systems and the Determination of Scandium

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Abstract

Two-phase aqueous systems, polyethylene glycol PEG-3000 (C3H7OH)–NaNO3 (NaNO3 + KSCN)–H2O, are proposed for the selective extraction of scandium nitrate and thiocyanate complexes followed by the complexometric and spectrophotometric determination of scandium. Conditions for analyte separation from rare-earth and concomitant elements are optimized. The procedures are tested on samples of rare-earth metals, concentrates, and an aluminum alloy. The relative standard deviation is not more than 0.8% for complexometric determination and 4.6% for spectrophotometric determination. The time of analysis is not longer than 30 min.

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Authors and Affiliations

  1. Faculty of Chemistry, Donetsk National University, Donetsk, 83001, Ukraine

    T. N. Simonova & A. N. Fedotov

  2. Litvinenko Institute of Physical Organic and Coal Chemistry, Donetsk, 83114, Ukraine

    N. V. Alemasova

Authors
  1. T. N. Simonova
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  2. A. N. Fedotov
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  3. N. V. Alemasova
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Correspondence to T. N. Simonova.

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Original Russian Text © T.N. Simonova, A.N. Fedotov, N.V. Alemasova, 2018, published in Zhurnal Analiticheskoi Khimii, 2018, Vol. 73, No. 1, pp. 22–27.

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Simonova, T.N., Fedotov, A.N. & Alemasova, N.V. Extraction of Scandium Nitrate and Thiocyanate Complexes Using Two-Phase Aqueous Systems and the Determination of Scandium. J Anal Chem 73, 18–22 (2018). https://doi.org/10.1134/S1061934818010112

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  • DOI: https://doi.org/10.1134/S1061934818010112

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