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Synergic extraction of Pr(III), Ho(III) and Er(III) with a mixture of 2-thenoylltrifluoroacetone and tribenzylamine

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Abstract

Synergic solvent extraction of Pr(III), Ho(III) and Er(III) was carried out at pH≤3.5 with a mixture of 2-thenoyltrifluoroacetone (HTTA) and tribenzylamine (TBA) from perchlorate media, having ionic strength 0.1M(H+, ClO −4 ). The stoichiometmric composition of all three synergic adducts was established to be Pr(TTA)3·3TBA, Ho(TTA)3·3TBA and Er(TTA)3·3TBA. The formation constants KTTA and Ksyn and stability constant ±syn were also computed and found to be in the order Er≥Ho>Pr. The effect of various anions on the extraction has also been studied.

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Authors and Affiliations

  1. Nuclear Chemistry Division, Pakistan Institute of Nuclear Science and Technology, P.O. Nilore, Islamabad, (Pakistan)

    M. Mufazzal Saeed, Akbar Ali, Munir Ahmad, M. N. Cheema & I. H. Qureshi

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  1. M. Mufazzal Saeed
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  2. Akbar Ali
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  3. Munir Ahmad
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  4. M. N. Cheema
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  5. I. H. Qureshi
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Mufazzal Saeed, M., Ali, A., Ahmad, M. et al. Synergic extraction of Pr(III), Ho(III) and Er(III) with a mixture of 2-thenoylltrifluoroacetone and tribenzylamine. Journal of Radioanalytical and Nuclear Chemistry, Articles 129, 69–76 (1989). https://doi.org/10.1007/BF02037569

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  • DOI: https://doi.org/10.1007/BF02037569

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