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Properties of the material of interphase formations based on lanthanide Di-(2-ethylhexyl)phosphate

  • Physical Chemistry of Surface Phenomena
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Abstract

The structural, optical, and electrical properties of the material of interphase formations arising spontaneously in the interface region of an extraction system consisting of an aqueous solution of a rare-earth element (REE) salt (a solution of di-(2-ethylhexyl)phosphoric acid (D2EHPA) in an organic solvent) are investigated. The structure of lanthanide di-(2-ethylhexyl)phosphate is determined and its lattice constants are estimated. It is shown that the electric conductivity and optical density of the material of interphase formations transferred onto a glass plate correlate with the accumulation of REEs in the interfacial layer of the extraction system. The difference between the properties of the material of interphase formations based on REEs of the yttrium and cerium subgroups is established.

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Authors and Affiliations

  1. Mendeleev University of Chemical Technology, Novomoskovsk Institute, Novomoskovsk, 301665, Russia

    E. N. Golubina & N. F. Kizim

  2. Mendeleev University of Chemical Technology, Moscow, 125047, Russia

    A. M. Chekmarev

Authors
  1. E. N. Golubina
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  2. N. F. Kizim
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  3. A. M. Chekmarev
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Corresponding author

Correspondence to E. N. Golubina.

Additional information

Original Russian Text © E.N. Golubina, N.F. Kizim, A.M. Chekmarev, 2014, published in Zhurnal Fizicheskoi Khimii, 2014, Vol. 88, No. 9, pp. 1427–1432.

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Golubina, E.N., Kizim, N.F. & Chekmarev, A.M. Properties of the material of interphase formations based on lanthanide Di-(2-ethylhexyl)phosphate. Russ. J. Phys. Chem. 88, 1594–1599 (2014). https://doi.org/10.1134/S0036024414090155

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  • DOI: https://doi.org/10.1134/S0036024414090155

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