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Thermodynamics of the complexation of ethylenediaminesuccinates of cerium subgroup lanthanides at 298.15 K

  • Chemical Thermodynamics and Thermochemistry
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Abstract

Thermodynamic parameters of the complex formation reactions of ethylenediamine-N,N′-disuccinic acid (H4Y) with La3+, Ce3+, Pr3+, and Nd3+ ions are determined by means of calorimetry and pH-metry in aqueous solutions at 298.15 K and ionic strength I = 0.5 (KNO3). Values of logK, Δr G, Δr H, and Δr S are calculated for reactions of LnY- and LnHY complex formation. Changes in the thermodynamic parameters of reactions in the lanthanides series are discussed.

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Authors and Affiliations

  1. Ivanovo State University of Chemical and Technology, Ivanovo, 153000, Russia

    A. I. Lytkin, N. V. Chernyavskaya & A. S. Chernov

  2. Nekrasov Kostroma State University, Kostroma, 156961, Russia

    V. E. Litvinenko

Authors
  1. A. I. Lytkin
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  2. N. V. Chernyavskaya
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  3. A. S. Chernov
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  4. V. E. Litvinenko
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Correspondence to A. I. Lytkin.

Additional information

Original Russian Text © A.I. Lytkin, N.V. Chernyavskaya, A.S. Chernov, V.E. Litvinenko, 2015, published in Zhurnal Fizicheskoi Khimii, 2015, Vol. 89, No. 10, pp. 1549–1552.

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Lytkin, A.I., Chernyavskaya, N.V., Chernov, A.S. et al. Thermodynamics of the complexation of ethylenediaminesuccinates of cerium subgroup lanthanides at 298.15 K. Russ. J. Phys. Chem. 89, 1749–1752 (2015). https://doi.org/10.1134/S0036024415100209

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  • DOI: https://doi.org/10.1134/S0036024415100209

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