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Extraction of thallium and indium isotopes as the homologues of nihonium into the ionic liquids

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Abstract

Extraction of thallium and indium, as the homologues of nihonium, from HCl solutions into hydrophobic ionic liquids was studied. In the presence of NaClO2 as the oxidizing agent, thallium is effectively extracted into all the tested ionic liquids from 0.2 to 5 M HCl. In absence of NaClO2, thallium extraction strongly depends on the HCl concentration and no extraction of indium was observed. Using [C6mim][NTf2] and [Tbma][NTf2], the thallium/indium separation factors SF(Tl/In) > 4 × 104 can be achieved. Hence, the system with NaClO2 oxidizing agent can be considered a candidate for the future studies of nihonium chemical properties.

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Acknowledgements

This work was carried out within CANAM infrastructure project LM2015056 and within the Center for advanced applied science, Project Number CZ.02.1.01/0.0/0.0/16_019/0000778, both supported by the Ministry of Education, Youth and Sports of the Czech Republic.

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Authors and Affiliations

  1. Department of Nuclear Chemistry, Faculty of Nuclear Sciences and Physical Engineering, Czech Technical University in Prague, 115 19, Prague, Czech Republic

    Katerina Cubova, Miroslava Semelova, Mojmir Nemec, Jan John & Juraj Milacic

  2. Department of Chemistry, University of Oslo, Blindern, P.O. Box 1033, 0315, Oslo, Norway

    Jon Petter Omtvedt

  3. Nuclear Physics Institute, Czech Academy of Sciences, 25068, Rez, Czech Republic

    Jan Stursa

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  1. Katerina Cubova
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  2. Miroslava Semelova
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  3. Mojmir Nemec
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  4. Jan John
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  6. Jon Petter Omtvedt
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  7. Jan Stursa
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Correspondence to Katerina Cubova.

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Cubova, K., Semelova, M., Nemec, M. et al. Extraction of thallium and indium isotopes as the homologues of nihonium into the ionic liquids. J Radioanal Nucl Chem 318, 2455–2461 (2018). https://doi.org/10.1007/s10967-018-6270-x

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  • DOI: https://doi.org/10.1007/s10967-018-6270-x

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