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Title: Radiochemical Separation of Group 5 Elements. Model Experiments for Investigation of Dubnium Chemical Behaviour

Abstract

Chemical behaviour of group 5 elements in the aqueous hydrofluoric acid solutions was studied. The radiochemical method for the cation exchange separation of Nb (Pa) and Ta from Zr, Hf and lanthanides is presented. The developed scheme allows excluding of the presence of SF heavy actinides in fractions of separated elements. On the basis of the data of the present work, it is possible to suggest the following order of the stability of the fluoride complexes of group 4 and 5 elements: Nb {approx_equal} Pa > Zr > Hf > Ta. The order of the complex formation is in agreement with theoretical predictions. This analytical procedure can be used in future heavy nuclei synthesis experiments for the separation of dubnium (Db) from other reactions products and for its chemical identification.

Authors:
; ; ; ; ; ;  [1]; ;  [2]
  1. Flerov Laboratory of Nuclear Reactions (FLNR), JINR, Dubna RU-141980 (Russian Federation)
  2. Paul Scherrer Institute (PSI), Villigen CH-5232 (Switzerland)
Publication Date:
OSTI Identifier:
21061807
Resource Type:
Journal Article
Resource Relation:
Journal Name: AIP Conference Proceedings; Journal Volume: 912; Journal Issue: 1; Conference: International symposium on exotic nuclei, Khanty-Mansiysk (Russian Federation), 17-22 Jul 2006; Other Information: DOI: 10.1063/1.2746601; (c) 2007 American Institute of Physics; Country of input: International Atomic Energy Agency (IAEA)
Country of Publication:
United States
Language:
English
Subject:
37 INORGANIC, ORGANIC, PHYSICAL AND ANALYTICAL CHEMISTRY; DUBNIUM; FLUORIDES; HEAVY NUCLEI; HYDROFLUORIC ACID; ION EXCHANGE; ISOTOPE SEPARATION; NIOBIUM; PROTACTINIUM; RADIOCHEMISTRY; RARE EARTHS; SOLUTIONS; STABILITY; TANTALUM

Citation Formats

Tereshatov, E. E., Bozhikov, G. A., Aksenov, N. V., Starodub, G. Ya., Vostokin, G. K., Shishkin, S. V., Dmitriev, S. N., Bruchertseifer, H., and Gaeggeler, H. W. Radiochemical Separation of Group 5 Elements. Model Experiments for Investigation of Dubnium Chemical Behaviour. United States: N. p., 2007. Web. doi:10.1063/1.2746601.
Tereshatov, E. E., Bozhikov, G. A., Aksenov, N. V., Starodub, G. Ya., Vostokin, G. K., Shishkin, S. V., Dmitriev, S. N., Bruchertseifer, H., & Gaeggeler, H. W. Radiochemical Separation of Group 5 Elements. Model Experiments for Investigation of Dubnium Chemical Behaviour. United States. doi:10.1063/1.2746601.
Tereshatov, E. E., Bozhikov, G. A., Aksenov, N. V., Starodub, G. Ya., Vostokin, G. K., Shishkin, S. V., Dmitriev, S. N., Bruchertseifer, H., and Gaeggeler, H. W. Tue . "Radiochemical Separation of Group 5 Elements. Model Experiments for Investigation of Dubnium Chemical Behaviour". United States. doi:10.1063/1.2746601.
@article{osti_21061807,
title = {Radiochemical Separation of Group 5 Elements. Model Experiments for Investigation of Dubnium Chemical Behaviour},
author = {Tereshatov, E. E. and Bozhikov, G. A. and Aksenov, N. V. and Starodub, G. Ya. and Vostokin, G. K. and Shishkin, S. V. and Dmitriev, S. N. and Bruchertseifer, H. and Gaeggeler, H. W.},
abstractNote = {Chemical behaviour of group 5 elements in the aqueous hydrofluoric acid solutions was studied. The radiochemical method for the cation exchange separation of Nb (Pa) and Ta from Zr, Hf and lanthanides is presented. The developed scheme allows excluding of the presence of SF heavy actinides in fractions of separated elements. On the basis of the data of the present work, it is possible to suggest the following order of the stability of the fluoride complexes of group 4 and 5 elements: Nb {approx_equal} Pa > Zr > Hf > Ta. The order of the complex formation is in agreement with theoretical predictions. This analytical procedure can be used in future heavy nuclei synthesis experiments for the separation of dubnium (Db) from other reactions products and for its chemical identification.},
doi = {10.1063/1.2746601},
journal = {AIP Conference Proceedings},
number = 1,
volume = 912,
place = {United States},
year = {Tue May 22 00:00:00 EDT 2007},
month = {Tue May 22 00:00:00 EDT 2007}
}