Abstract
The extraction of thorium by benzene solutions of HIPT in presence of different neutral extractants (S) was studied using perchloric, hydrochloric and sulphuric acids as aqueous media. With TBP as the donor the effect of the diluents CCl4, benzene and CHCl3 on the extraction was studied. The synergism observed was attributed to the formation of the extractable adduct Th(IPT)4 · S and, in some cases, to the extraction of additional mixed adducts involving the participation of the anion of the aqueous medium used for extraction. The adduct formation constants for the formation of Th(IPT)4 ·S were evaluated and the formation of this adduct was independently confirmed by spectrophotometric measurements. The aqueous complexing of thorium by IPT was investigated spectrophotometrically as these data were required for the quantitative interpretation of the extraction data.
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Mapara, P.M., Phal, D.G., Negi, S. et al. Synergic extraction of thorium by beta-isopropyltropolone-neutral donor combinations. Journal of Radioanalytical and Nuclear Chemistry, Articles 81, 89–108 (1984). https://doi.org/10.1007/BF02132924
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DOI: https://doi.org/10.1007/BF02132924