title: 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.
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.
authors.affiliation: Graduate School of Science, Osaka University, Toyonaka, Osaka 560-0043, Japan. kasa@chem.sci.osaka-u.ac.jp.
authors.forename: Takuya
authors.initials: T
authors.lastname: Yokokita
authors.affiliation: Graduate School of Science, Osaka University, Toyonaka, Osaka 560-0043, Japan. kasa@chem.sci.osaka-u.ac.jp.
authors.forename: Yoshitaka
authors.initials: Y
authors.lastname: Kasamatsu
authors.affiliation: Graduate School of Science, Osaka University, Toyonaka, Osaka 560-0043, Japan. kasa@chem.sci.osaka-u.ac.jp.
authors.forename: Aiko
authors.initials: A
authors.lastname: Kino
authors.affiliation: Nishina Center for Accelerator-Based Science, RIKEN, Wako, Saitama 351-0198, Japan.
authors.forename: Hiromitsu
authors.initials: H
authors.lastname: Haba
authors.affiliation: Graduate School of Science, Osaka University, Toyonaka, Osaka 560-0043, Japan. kasa@chem.sci.osaka-u.ac.jp.
authors.forename: Yudai
authors.initials: Y
authors.lastname: Shigekawa
authors.affiliation: Graduate School of Science, Osaka University, Toyonaka, Osaka 560-0043, Japan. kasa@chem.sci.osaka-u.ac.jp.
authors.forename: Yuki
authors.initials: Y
authors.lastname: Yasuda
authors.affiliation: Graduate School of Science, Osaka University, Toyonaka, Osaka 560-0043, Japan. kasa@chem.sci.osaka-u.ac.jp.
authors.forename: Kouhei
authors.initials: K
authors.lastname: Nakamura
authors.affiliation: Graduate School of Science, Osaka University, Toyonaka, Osaka 560-0043, Japan. kasa@chem.sci.osaka-u.ac.jp.
authors.forename: Keigo
authors.initials: K
authors.lastname: Toyomura
authors.affiliation: Nishina Center for Accelerator-Based Science, RIKEN, Wako, Saitama 351-0198, Japan.
authors.forename: Yukiko
authors.initials: Y
authors.lastname: Komori
authors.affiliation: Nishina Center for Accelerator-Based Science, RIKEN, Wako, Saitama 351-0198, Japan.
authors.forename: Masashi
authors.initials: M
authors.lastname: Murakami
authors.affiliation: Radioisotope Research Center, Osaka University, Suita, Osaka 565-0871, Japan.
authors.forename: Takashi
authors.initials: T
authors.lastname: Yoshimura
authors.affiliation: Graduate School of Science, Osaka University, Toyonaka, Osaka 560-0043, Japan. kasa@chem.sci.osaka-u.ac.jp.
authors.forename: Naruto
authors.initials: N
authors.lastname: Takahashi
authors.affiliation: Nishina Center for Accelerator-Based Science, RIKEN, Wako, Saitama 351-0198, Japan.
authors.forename: Kosuke
authors.initials: K
authors.lastname: Morita
authors.affiliation: Graduate School of Science, Osaka University, Toyonaka, Osaka 560-0043, Japan. kasa@chem.sci.osaka-u.ac.jp.
authors.forename: Atsushi
authors.initials: A
authors.lastname: Shinohara