Journal of Radioanalytical and Nuclear Chemistry

, Volume 301, Issue 2, pp 545–553 | Cite as

Recrystallization of 223Ra with barium sulfate

  • Natallia Torapava
  • Henrik Ramebäck
  • Enzo Curti
  • Petra Lagerkvist
  • Christian Ekberg


In this work, the kinetics of barium sulfate recrystallization has been studied in acidic 0.01 mol dm−3 sodium sulfate solution using 223Ra and 133Ba tracers at very low total radium concentration, i.e. less than 10−13 mol dm−3. It was found that the system follows the homogeneous recrystallization model and that recrystallization rates, inferred by the decrease of 223Ra and 133Ba in the aqueous solution, are fast. Therefore, even at very low concentrations, below the solubility limit, radium will be retained by barium sulfate—a mineral present in the deep underground repository.


Radium Barite Recrystallization Kinetics Nuclear waste 



The research leading to these results received funding from the European Union’s European Atomic Energy Community’s (Euratom) Seventh Framework Programme FP7/2011−2013 under grant agreement n° 269688 (“SKIN” project). We are grateful to Prof. Gunnar Skarnemark for help with safety advice regarding work with radium.

Supplementary material

10967_2014_3170_MOESM1_ESM.docx (260 kb)
Supplementary material 1 (DOCX 260 kb)


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Copyright information

© Akadémiai Kiadó, Budapest, Hungary 2014

Authors and Affiliations

  • Natallia Torapava
    • 1
  • Henrik Ramebäck
    • 1
    • 2
  • Enzo Curti
    • 3
  • Petra Lagerkvist
    • 2
  • Christian Ekberg
    • 1
  1. 1.Department of Chemical and Biological Engineering, Nuclear ChemistryChalmers University of TechnologyGothenburgSweden
  2. 2.Division of CBRN Defence and SecuritySwedish Defence Research AgencyUmeåSweden
  3. 3.Laboratory for Waste Management, Nuclear Energy and Safety Research DepartmentPaul Scherrer InstituteVilligenSwitzerland

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