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Synthesis and properties of neptunium(VI,V) and plutonium(VI) pertechnetates
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A. M. Fedosseev
Published/Copyright:
September 25, 2009
Abstract
Preparation, crystal structure and properties revealed through IR and visible absorption spectroscopy study of Np(V,VI), Pu(VI) compounds formed with pertechnetate anions are reported. Spectrophotometric study of Np(V) and Pu(VI) in NH4TcO4 aqueous solutions (TcO4- concentration ranging between 0.2-0.5 M) shows only a slight interaction of NpO2+ and PuO22+-ions with pertechnetate oxoanions in solution. On the contrary, for Np(V), Np(VI) and Pu(VI) pertechnetates in solid state, changes in the spectra clearly evidence the coordination of the actinides(V,VI) with TcO4--anions. That is in agreement with Np(VI) pertechnetate X-ray structural analysis performed on a single crystal.
Published Online: 2009-9-25
Published in Print: 2003-3-1
© 2003 Oldenbourg Wissenschaftsverlag GmbH
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Articles in the same Issue
- Thermochromatographic studies of berkelium chlorides: BkCl3 and BkCl4
- Thermodynamics of extraction of Am(III) and Eu(III) from different anionic media with Tri-n-octyl phosphine oxide
- Influence of humic acid size on actinide complexation
- The role of oxidants in Pu-Th separation studies employing di(2-ethylhexyl)isobutyramide (D2EHIBA) as extractant
- Synthesis and properties of neptunium(VI,V) and plutonium(VI) pertechnetates
- Speciation of polonium released from molten lead bismuth
- Extraction separation of No-carrier-added astatine from bismuth target
- Enhanced extraction and separation of trivalent lanthanoids with 3-phenyl-4-(4-fluorobenzoyl)-5-isoxazolone and dicyclohexano-18-crown-6
- Thermodynamic modeling of metal–ligand interactions in high ionic strength NaCl solutions: the Ni2+-oxalate system
- Influence of surface charge of an Fe-oxide and an organic matter dominated soil on iodide and pertechnetate sorption
- Concentration distributions of radionuclides in sediments along the Romanian sector of the Danube River and the Black Sea coast
