@article{oai:ir.kagoshima-u.ac.jp:00010602, author = {KAMATA, Satsuo and 鎌田, 薩男 and KUSUHATA, Takuji and 楠畑, 拓路 and MIYAMURA, Kazunari and 宮村, 和哉 and FREISER, H.}, journal = {鹿児島大学工学部研究報告, The research reports of the Faculty of Engineering, Kagoshima University}, month = {Nov}, note = {A crown compound such as dibenzo-18-crown-6 (DBC) forms complexes with alkali metals. But the effect of anion on metal extraction with DBC is not so apparent. In the extraction of sodium and potassium ions with DBC, the degree of extractability is remarkably dependent on the anion in their metal salts, expressed as follows: ClO_4^- > CNS^- ? I^- > NO_3^- > Br^- ? OH^- The decreasing order is explained on the basis of the difficulty of the removal of these ions from the aqueous phase, which coincides with the increasing order of the Gibbs free energy of hydration.}, pages = {165--169}, title = {Influence of anions on potassium and sodium extraction with dibenzo-18-crown-6}, volume = {31}, year = {1989} }