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Comment on "Behaviour of europium(III) and its hydroxo and carbonate complexes in a solvent extraction system with HDBM in 2 M NaCl at 303 K" by M. Jiménez-Reyes, M. Solache-Rios and A. Rojas-Hernández
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Thomas Fanghänel
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September 25, 2009
In a recent paper [1] the hydrolysis and carbonate complexation of Eu(III) was studied by potentiometric titration of 2×10-4 M Eu(III) solutions in the range pH = 7-13. Under the experimental conditions applied in this study, the Eu(III) concentration exceeds the solubility of Eu(OH)3(s) or EuOHCO3(s) by several orders of magnitude. The formation constants derived for numerous aqueous Eu(III) hydrolysis species and ternay hydroxo-carbonate complexes must be considered as erroneous. They are the result of misinterpretation of the formation of solid Eu(III) particles as hydrolysis or carbonate complexation in solution.
Published Online: 2009-9-25
Published in Print: 2000-8-1
© 2015 Oldenbourg Wissenschaftsverlag GmbH, Rosenheimer Str. 145, 81671 München
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Articles in the same Issue
- Cross-sections and linear momentum transfer in α-induced reactions on 85Rb
- Non-destructive and radiochemical determination of the neutron-induced production cross section of I-129 from Te and other neutron-induced cross sections on Te at 14.7 MeV
- Contribution of the concept of simple solutions to calculation of the density of ternary and quaternary solutions of thorium(IV) or plutonium(IV) nitrate: An(NO3)4/UO2(NO3)2/HNO3/H2O
- Sorption and desorption kinetics of Np(V) on magnetite and hematite
- Improvement in radiochemical and γ-counting procedures for the determination of 234Th in seawater
- Secondary ion mass spectrometry measurements of volcanic tuffs containing radionuclides from underground nuclear tests
- Electrochemical deposition of carrier-free radionuclides
- Sorption study of strontium onto hydrated cement phases using a sequential desorption method
- Trace detection of 41Ca in nuclear reactor concrete by diode-laser-based resonance ionization mass spectrometry
- Preparation of 188Re-lanreotide peptide and its quality control
- Comment on "Behaviour of europium(III) and its hydroxo and carbonate complexes in a solvent extraction system with HDBM in 2 M NaCl at 303 K" by M. Jiménez-Reyes, M. Solache-Rios and A. Rojas-Hernández
