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Solubility of oxides in the KBr-BaBr2 eutectic melt (0.495: 0.505) at 973 K

  • Physical Methods of Investigations
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Abstract

Solubility products of MnO (pK s,MnO = 6.32 ± 0.1), NiO (pK s,NiO = 8.06 ± 0.2), and PbO (pK s,PbO = 4.04 ± 0.2) in KBr-BaBr2 (0.495: 0.505) melt at 973 K were determined by potentiometric titration using a Pt(O2)|ZrO2(Y2O3) membrane oxygen electrode. A significant increase in oxide solubilities compared to those of 2CsBr · KBr melt is attributed to the enhancement of acidic properties of cations in the series Cs+, K+-Ba2+, ensuring a greater degree of binding of oxide ions that results from dissociation of the oxide under study to the cationic framework of the melt. The solubilities of the investigated oxides in chloride and bromide melts with similar cationic compositions are virtually identical.

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Authors and Affiliations

  1. Institute for Scintillation Materials, National Academy of Sciences of Ukraine, Kharkiv, Ukraine

    T. P. Rebrova, V. L. Cherginets & V. A. Naumenko

Authors
  1. T. P. Rebrova
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  2. V. L. Cherginets
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  3. V. A. Naumenko
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Correspondence to V. L. Cherginets.

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Original Russian Text © T.P. Rebrova, V.L. Cherginets, V.A. Naumenko, 2014, published in Zhurnal Neorganicheskoi Khimii, 2014, Vol. 59, No. 4, pp. 534–537.

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Rebrova, T.P., Cherginets, V.L. & Naumenko, V.A. Solubility of oxides in the KBr-BaBr2 eutectic melt (0.495: 0.505) at 973 K. Russ. J. Inorg. Chem. 59, 376–379 (2014). https://doi.org/10.1134/S0036023614040159

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  • DOI: https://doi.org/10.1134/S0036023614040159

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