Selective and efficient uphill transport of Cu(II) through bulk liquid membrane using Nethyl-2-aminocyclopentene- 1 -dithiocarboxylie acid as carrier

摘要

N-ethyl-2-aminocyclopentene- 1-dithiocarboxylic acid is an excellent synthetic carrier for highly efficient and selective transport of Cu(II) ions through a liquid membrane and has the ability to transport Cu(II) ions uphill. In the presence of hydrazine sulfate as a reducing agent and thiocyanate as a metal ion acceptor in the receiving phase and at the optimum pH of 1.5, about 100/100 of copper was transported over a period of 1 h. The carrier can selectively and efficiently transport Cu(II) ion from aqueous solutions containing other cations such as Mg~2+, Ca~2+. Co~2+. Ni~2+, Cd~2+. Fe~2+. Cr~3+, Cr~6+. Zn~2+. Mn~2+. Pd~2+, Pb~2+, Hg~2+, Sn~2+, Fe~3+, Al~3+ and Ag~+.