Abstract − Analytical Sciences, 17(7), 819 (2001).
Studies on Electrochemical Solvent Extraction of Metal Ions at Water/1,2-dichloroethane Interface
Masayuki ITAGAKI, Hiroshi FUKUSHIMA, and Kunihiro WATANABE
Department of Pure and Applied Chemistry, Faculty of Science and Technology, Science University of Tokyo, Noda, Chiba 278-8510, Japan
Solvent extraction mechanisms of some metallic ions, Mn(II), Zn(II), Ni(II), and Co(II), from aqueous phase to 1,2-dichloroethane (DCE) were examined by electrochemical impedance spectroscopy (EIS) and other electrochemical methods. Diffusion-limiting currents were observed in the i-E curves. Such a diffusion-limiting current corresponds to the transfer rate of the metallic ion from the aqueous phase to the DCE phase, and it was found that the extraction rates followed the order of Mn(II)
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