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Aggregation Equilibria and Interactions Between Components of the Extractants Based on 2-Hydroxy-5-nonylacetophenoneoxime

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Abstract

2-Hydroxy-5-nonylacetophenoneoxime is the active component of several commercial extractants that usually also contain the modifier 4-nonylphenol as a result of the manufacturing processes. The aggregation of these components, 2-hydroxy-5-nonylacetophenoneoxime and 4-nonylphenol, as well as their interaction reactions in toluene at 28 °C have been studied by vapor pressure osmometry. Osmometric data have been treated numerically and the results reveal the formation of dimeric species of the components and the interaction between them to give a 1:1 adduct. The corresponding formation constant values are given. Finally, the osmometric behavior of the commercial extractant SME 529 has been studied and interpreted on the basis of the proposed aggregation and interaction model.

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Authors and Affiliations

  1. Department of Analytical Chemistry, Faculty of Science and Technology, University of the Basque Country, P.O. Box 644, 48080, Bilbao, Spain

    María P. Elizalde, M. Sol Rúa & Begoña Menoyo

Authors
  1. María P. Elizalde
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  2. M. Sol Rúa
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  3. Begoña Menoyo
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Correspondence to María P. Elizalde.

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Dedicated to the memory of Dr. Ana Almela.

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Elizalde, M.P., Rúa, M.S. & Menoyo, B. Aggregation Equilibria and Interactions Between Components of the Extractants Based on 2-Hydroxy-5-nonylacetophenoneoxime. J Solution Chem 47, 1953–1964 (2018). https://doi.org/10.1007/s10953-018-0832-y

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