Observation of the chemical reaction equilibria of element 104, rutherfordium: solid–liquid extraction of Rf, Zr, Hf and Th with Aliquat 336 resin from HCl

Takuya Yokokita; Yoshitaka Kasamatsu; Aiko Kino; Hiromitsu Haba; Yudai Shigekawa; Yuki Yasuda; Kouhei Nakamura; Keigo Toyomura; Yukiko Komori; Masashi Murakami; Takashi Yoshimura; Naruto Takahashi; Kosuke Morita; Atsushi Shinohara

doi:10.1039/C6DT03497G

Observation of the chemical reaction equilibria of element 104, rutherfordium: solid–liquid extraction of Rf, Zr, Hf and Th with Aliquat 336 resin from HCl†

Takuya Yokokita,^a Yoshitaka Kasamatsu,*^a Aiko Kino,^a Hiromitsu Haba,^b Yudai Shigekawa,^a Yuki Yasuda,^a Kouhei Nakamura,^a Keigo Toyomura,^a Yukiko Komori,^b Masashi Murakami,^b Takashi Yoshimura,^c Naruto Takahashi,^a Kosuke Morita^b and Atsushi Shinohara^a

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* Corresponding authors

^a Graduate School of Science, Osaka University, Toyonaka, Osaka 560-0043, Japan
E-mail: kasa@chem.sci.osaka-u.ac.jp

^b Nishina Center for Accelerator-Based Science, RIKEN, Wako, Saitama 351-0198, Japan

^c Radioisotope Research Center, Osaka University, Suita, Osaka 565-0871, Japan

Abstract

We successfully observed the equilibrium state of the chemical reactions for superheavy elements on a one-atom-at-a-time scale; we investigated the time dependence of the extraction behaviour of element 104, Rf. The distribution coefficient of Rf in 9 M HCl was found to be higher than those of its homologous elements, probably due to differences in the chloride complexation of Rf.

Dalton Transactions

Observation of the chemical reaction equilibria of element 104, rutherfordium: solid–liquid extraction of Rf, Zr, Hf and Th with Aliquat 336 resin from HCl†

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Observation of the chemical reaction equilibria of element 104, rutherfordium: solid–liquid extraction of Rf, Zr, Hf and Th with Aliquat 336 resin from HCl

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