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A Study of 1-Phenyl-3-Methyl-4-Trichloroacetyl Pyrazolone-5 as an Extractant for Uranium (VI) From Buffered Solutions

Article scientifique 2020 Anglais

Résumé

Abstract Chloroform solutions of 1-Phenyl-3-Methyl-4-Trichloroacetylpyrazolone-5 (HTCP) for the extraction of Uranium (VI) (UO22+) from various buffered solutions containing different SO42- ion concentrations was investigated. After extraction processes, colorimetric method was used to determine Uranium(VI) concentrations in aqueous media. Solutions of HTCP in chloroform did not extract U(VI) in buffered solutions containing SO42- ions between pH 0 – 2, which was attributed to the formation of unextractable Sulphate Uranyl (UO2)SO4 complex. However, there was extraction of U(VI) of 88,70 %, 76.84 % and 55.49 % between pH 2.96 – 3.21 for solutions containing 0.01 M, 0.1 M and 1 M SO42- ion respectively. An increase in SO42- ion concentration decreased the optimum extraction of U(VI). The presence of SO42- ion in buffered solutions had a masking effect on the extraction of U(VI). The metal ligand ratio was 1:1 and the adduct complex of the metal characterized as UO2(TCP) was extracted.

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Bennett, V., Amos-Tautua, B., Kemeakegha, A. (2020). A Study of 1-Phenyl-3-Methyl-4-Trichloroacetyl Pyrazolone-5 as an Extractant for Uranium (VI) From Buffered Solutions. https://doi.org/10.21203/rs.3.rs-97814/v1

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Auteur(s)

Victoria C. Bennett Bamidele Amos-Tautua Ayasen Jermaine Kemeakegha

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