Synergistic extraction of Ce(III), Eu(III) and Tm(III) with a mixture of picrolonic acid and tributylphosphine oxide in chloroform
-
Akbar Ali
Summary
Synergistic extraction of Ce(III), Eu(III) and Tm(III) as a representative of lanthanides(III) with a mixture of picrolonic acid {1-p-nitrophenyl-3-methyl-4-nitro-5-pyrazolon (HPA)} acting as an acidic chelating agent and tributylphosphineoxide (TBPO) as a neutral ligand in chloroform from pH 2 buffer solution has been studied. The composition of the synergistic adduct has been determined to be M(PA)3·2TBPO (M=Ce(III), Eu(III), Tm(III)). The effect of various anions and cations on the extraction of these metal ions has also been studied. Among the anions, fluoride, oxalate, citrate and cyanide ions masked the extraction, whereas Fe(III) and Cu(II) reduced the extraction to ∼90%. The formation constant, and separation factor from various metal ions has also been determined and discussed.
© 2004 Oldenbourg Wissenschaftsverlag GmbH
Artikel in diesem Heft
- Evidence for the formation of sodium hassate(VIII)
- Study of nitrate complex formation with trivalent Pm, Eu, Am and Cm using a solvent extraction technique
- Hydrolysis of Np(IV) and Pu(IV) and their complexation by aqueous Si(OH)4
- Reduction kinetics of Np(VI) by n-butyraldehyde in tributyl phosphate diluted with n-dodecane
- Speciation study on complex formation of uranium(VI) with phosphate and fluoride at high temperatures and pressures by time-resolved laser-induced fluorescence spectroscopy
- Stability constants of uranium(IV)-α-isosaccharinic acid and gluconic acid complexes
- Uranium(VI) complexes with sugar phosphates in aqueous solution
- Uranium kernel formation via internal gelation
- Investigation of evaporation characteristics of polonium and its lighter homologues selenium and tellurium from liquid Pb-Bi-eutecticum
- Synergistic extraction of Ce(III), Eu(III) and Tm(III) with a mixture of picrolonic acid and tributylphosphine oxide in chloroform
- Synthesis of malonic acid-functionalized Amberlite XAD-4 and its use in solid phase extraction/preconcentrative separation of thorium(IV)
- INAA methodology using low power reactor for the characterization of IAEA-433; Coastal marine sediment as a potential reference material
- Determination of natural radioactivity in building materials used in the Karachi area by γ-ray spectrometry and INAA
- Improved targetry and production of iodine-124 for PET studies
Artikel in diesem Heft
- Evidence for the formation of sodium hassate(VIII)
- Study of nitrate complex formation with trivalent Pm, Eu, Am and Cm using a solvent extraction technique
- Hydrolysis of Np(IV) and Pu(IV) and their complexation by aqueous Si(OH)4
- Reduction kinetics of Np(VI) by n-butyraldehyde in tributyl phosphate diluted with n-dodecane
- Speciation study on complex formation of uranium(VI) with phosphate and fluoride at high temperatures and pressures by time-resolved laser-induced fluorescence spectroscopy
- Stability constants of uranium(IV)-α-isosaccharinic acid and gluconic acid complexes
- Uranium(VI) complexes with sugar phosphates in aqueous solution
- Uranium kernel formation via internal gelation
- Investigation of evaporation characteristics of polonium and its lighter homologues selenium and tellurium from liquid Pb-Bi-eutecticum
- Synergistic extraction of Ce(III), Eu(III) and Tm(III) with a mixture of picrolonic acid and tributylphosphine oxide in chloroform
- Synthesis of malonic acid-functionalized Amberlite XAD-4 and its use in solid phase extraction/preconcentrative separation of thorium(IV)
- INAA methodology using low power reactor for the characterization of IAEA-433; Coastal marine sediment as a potential reference material
- Determination of natural radioactivity in building materials used in the Karachi area by γ-ray spectrometry and INAA
- Improved targetry and production of iodine-124 for PET studies
