Chemical Behaviour of Rutherfordium (Rf, Element 104) in Ion-Exchanger.

Accession number;99A1007970
Title;Chemical Behaviour of Rutherfordium (Rf, Element 104) in Ion-Exchanger.
Author; TSUKADAKA ZUAKI (Japan Atomic Energy Res. Inst., Advanced Sci. Res. Center, JPN) BRUECHLE W (Gesellschaft Fuer Schwerionenforsch. (gsi)) EICHLER R (Paul Scherrer Insti. (psi)) GAERTNER M (Univ. Bern) GLATZ J P (Itu) KIRBACH U (Technol. Univ. Dresden) KRATZ J V (Univ. Mainz) NAGAME YUICHIRO (Japan Atomic Energy Res. Inst., Advanced Sci. Res. Center, JPN) ZAUNER S (Univ. Mainz)
Journal Title;Abstracts of Papers. Symposium on Radiochemistry
Journal Code:F0139B
ISSN:1345-2762
VOL.43rd;NO.;PAGE.55(1999)
Figure&Table&Reference;
Pub. Country;Japan
Language;Japanese
Abstract;The Kd values of Rf at various HF concentrations under condition of 0.1 M HNO 4+ solution in anion and cation exchange column were compared with the behaviour of other group 4 elements, Zr and Hf, and the pseudo-homologue Th. The data shows Rf behaves differently from group 4 elements and seems to resemble Th on both systems. A first attempt of interpretation could be that the ionic radii of Zr4+ and Hf4+ are very similar due to the lanthanide contraction resulting in similar complexation behaviour, while in Rf, the actinide contraction is surpassed by the relativistic expansion of the d orbitals. (author abst.)