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Evidence for the formation of sodium hassate(VIII)
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André von Zweidorf
Published/Copyright:
September 25, 2009
Summary
Hassium, element 108, was produced in the fusion reaction between 26Mg and 248Cm. The hassium recoils were oxidized in-situ to a highly volatile oxide, presumably HsO4, and were transported in a mixture of He and O2 to a deposition and detection system. The latter consisted of 16 silicon PIN-photodiodes facing a layer of NaOH, which served, in the presence of a certain partial pressure of water in the transport gas, as reactive surface for the deposition of the volatile tetroxides. Six correlated α-decay chains of Hs were detected in the first 5 detectors centred around detection position 3. In analogy to OsO4, which forms Na2[OsO4(OH)2], an osmate(VIII), with aqueous NaOH, HsO4 presumably was deposited as Na2[HsO4(OH)2], a hassate(VIII).
Published Online: 2009-9-25
Published in Print: 2004-12-1
© 2004 Oldenbourg Wissenschaftsverlag GmbH
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Articles in the same Issue
- 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
