Email this article Thermodynamic characteristics of complexation between Ho3+ and ethylenediamine-N,N'-disuccinic acid in aqueous solutions at 298.15 K
- Authors: Lytkin A.I.1, Chernyavskaya N.V.1, Chernov A.S.1, Litvinenko V.E.2
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Affiliations:
- Ivanovo State University of Chemistry and Technology
- Kostroma State University
- Issue: Vol 61, No 4 (2016)
- Pages: 526-530
- Section: Physical Chemistry of Solutions
- URL: https://journal-vniispk.ru/0036-0236/article/view/166381
- DOI: https://doi.org/10.1134/S0036023616040124
- ID: 166381
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Abstract
The thermodynamic characteristics of complexation between ethylenediamine-N,N'-disuccinic acid (H4Y; EDDA) and Ho3+ ion were determined calorimetrically and potentiometrically at 298.15 K and ionic strengths of 0.1, 0.5, 1.0, and 1.5 (KNO3). The logK, ΔrG, ΔrH, and ΔrS values for the formation of HoY– and HOHY complexes were calculated at the studied and zero ionic strength values. The changes in thermodynamic parameters of the reactions are discussed.
About the authors
A. I. Lytkin
Ivanovo State University of Chemistry and Technology
Author for correspondence.
Email: ail@isuct.ru
Russian Federation, Ivanovo, 153000
N. V. Chernyavskaya
Ivanovo State University of Chemistry and Technology
Email: ail@isuct.ru
Russian Federation, Ivanovo, 153000
A. S. Chernov
Ivanovo State University of Chemistry and Technology
Email: ail@isuct.ru
Russian Federation, Ivanovo, 153000
V. E. Litvinenko
Kostroma State University
Email: ail@isuct.ru
Russian Federation, Kostroma, 156961
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