Solvent Extraction of Cadmium Picrate by 18-Crown-6 Ether into Several Less-polar Diluents and Nitrobenzene: Re-evaluation of the Corresponding Overall Extraction Systems

Yoshihiro Kudo^1*, Shoichi Katsuta¹, Yuuki Ohsawa² and Kohei Nozaki²

¹Graduate School of Science, Chiba University, Chiba 263-8522, Japan, E-mail: shoichik@ch.edu.com

²Department of Chemistry, Faculty of Science, Chiba University, Chiba 263-8522, Japan, E-mail: shoichik@ch.edu.com

^*Corresponding Author: Yoshihiro Kudo, Graduate School of Science, Chiba University, 1-33, Yayoi-cho, Inage-ku, Chiba 263-8522, Japan, Tel: +81432902786 Email: