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Journal of Radioanalytical and Nuclear Chemistry

, Volume 303, Issue 2, pp 1169–1172 | Cite as

Chemical studies of Mo and W in preparation of a seaborgium (Sg) reduction experiment using MDG, FEC, and SISAK

  • A. Toyoshima
  • K. Ooe
  • S. Miyashita
  • M. Asai
  • M. F. Attallah
  • N. Goto
  • N. S. Gupta
  • H. Haba
  • M. Huang
  • J. Kanaya
  • Y. Kaneya
  • Y. Kasamatsu
  • Y. Kitatsuji
  • Y. Kitayama
  • K. Koga
  • Y. Komori
  • T. Koyama
  • J. V. Kratz
  • H. V. Lerum
  • Y. Oshimi
  • V. Pershina
  • D. Sato
  • T. K. Sato
  • Y. Shigekawa
  • A. Shinohara
  • A. Tanaka
  • K. Tsukada
  • S. Tsuto
  • T. Yokokita
  • A. Yokoyama
  • J. P. Omtvedt
  • Y. Nagame
  • M. Schädel
Article

Abstract

The extraction and reduction behavior of Mo and W, lighter homologs of Sg, was studied in continuous on-line experiments at the JAEA tandem accelerator to develop a new chemistry assembly consisting of a membrane degasser (MDG), a flow electrolytic column (FEC), and the continuous liquid–liquid extraction apparatus (SISAK). Extraction yields of Mo and W from 0.1 M HCl/0.9 M LiCl into 4-isopropyltropolone (hinokitiol, HT) in toluene were investigated. In the reduction experiment, Mo(VI) was successfully reduced to a lower oxidation state while W(VI) showed no reduction under the given conditions.

Keywords

Seaborgium (Sg) Molybdenum (Mo) Tungsten (W) Electrolytic reduction Solvent extraction 

Notes

Acknowledgments

The authors express their gratitude to the crew of the JAEA tandem accelerator for their invaluable assistance during the course of these experiments.

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Copyright information

© Akadémiai Kiadó, Budapest, Hungary 2014

Authors and Affiliations

  • A. Toyoshima
    • 1
  • K. Ooe
    • 2
  • S. Miyashita
    • 1
    • 3
  • M. Asai
    • 1
  • M. F. Attallah
    • 4
  • N. Goto
    • 2
  • N. S. Gupta
    • 4
  • H. Haba
    • 5
  • M. Huang
    • 5
  • J. Kanaya
    • 5
  • Y. Kaneya
    • 1
  • Y. Kasamatsu
    • 6
  • Y. Kitatsuji
    • 1
  • Y. Kitayama
    • 7
  • K. Koga
    • 3
  • Y. Komori
    • 6
  • T. Koyama
    • 2
  • J. V. Kratz
    • 8
  • H. V. Lerum
    • 4
  • Y. Oshimi
    • 2
  • V. Pershina
    • 9
  • D. Sato
    • 2
  • T. K. Sato
    • 1
  • Y. Shigekawa
    • 6
  • A. Shinohara
    • 6
  • A. Tanaka
    • 2
  • K. Tsukada
    • 1
  • S. Tsuto
    • 2
  • T. Yokokita
    • 6
  • A. Yokoyama
    • 7
  • J. P. Omtvedt
    • 4
  • Y. Nagame
    • 1
  • M. Schädel
    • 1
    • 9
  1. 1.Advanced Science Research CenterJapan Atomic Energy AgencyIbarakiJapan
  2. 2.Institute of Science and TechnologyNiigata UniversityNiigataJapan
  3. 3.Department of Chemistry, Graduate School of ScienceHiroshima UniversityHigashi-HiroshimaJapan
  4. 4.Department of ChemistryUniversity of OsloOsloNorway
  5. 5.RIKEN, Nishina Center for Accelerator-Based ScienceWakoSaitamaJapan
  6. 6.Graduate School of ScienceOsaka UniversityToyonakaJapan
  7. 7.College and Institute of Science and EngineeringKanazawa UniversityKanazawaJapan
  8. 8.Institut für KernchemieUniversität MainzMainzGermany
  9. 9.GSI Helmholtzzentrum für Schwerionenforschung GmbHDarmstadtGermany

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