Solvent Extraction Properties of Lipophilic Thiophene-Based Trifluoromethyl-Substituted Diketone Ligands for Uranium(VI) and Thorium(IV) Ions
Vol. 14 No. 4 (2019), Articles
Vol. 14 No. 4 (2019)

Solvent Extraction Properties of Lipophilic Thiophene-Based Trifluoromethyl-Substituted Diketone Ligands for Uranium(VI) and Thorium(IV) Ions

Articles
  • Samir A. Al-Taweel*, Elham A. Al-Qudah, Salah A. Al-Trawneh and Fawwaz I. Khalili
Samir A. Al-Taweel*, Elham A. Al-Qudah, Salah A. Al-Trawneh and Fawwaz I. Khalili

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Keywords

Solvent extraction, Trifluoromethyl--Diketone, Uranium(VI), Thorium(IV), thermodynamics, Synergism

How to Cite

Al-Taweel, S. (2021). Solvent Extraction Properties of Lipophilic Thiophene-Based Trifluoromethyl-Substituted Diketone Ligands for Uranium(VI) and Thorium(IV) Ions. Jordan Journal of Chemistry (JJC), 14(4), 157-164. Retrieved from https://jjc.yu.edu.jo/index.php/jjc/article/view/90 (Original work published June 16, 2020)
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Abstract

[4,4,4-trifluoro-1-(5-chloro-2-thienyl)-1,3-butanedione H(5-chloro-TTA) and 4,4,4-trifluoro-1-[5-methyl-2-thienyl]-1,3-butanedione H(5-methyl-TTA) were prepared according to literature. The extraction behavior of H(5-chloro-TTA) and H(5-methyl-TTA) diketones with Uranyl(VI) and Thorium(IV) ions was studied under different experimental conditions; namely, extraction time, ligand concentration, stripping time, stripping acid concentration, pH and temperature. From the distribution coefficients (Kd) at different temperatures, the enthalpy (ΔHº), Gibbs free energy (ΔGº) and entropy changes (ΔSº) associated with extraction processes for these ions were determined.

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