Silver(I) ion selective transport through a bulk liquid membrane containing 5,12-di(phenoxymethyl)-1,4-dioxa-7,10-dithiacyclodo- decane-2,3-dione as carrier
By Malihe Sadat Hosseiny, Gholam Hossein Rounaghi, Mahmud Chamsaz
ABSTRACT
5,12-Di(phenoxymethyl)-1,4-dioxa-7,10-dithiacyclododecane-2,3-dione is an excellent synthetic carrier for highly efficient and selective transport of Ag(I) ions through a liquid membrane. In the presence of thiosulfate as stripping agent in the receiving phase and at the optimum pH of 4, about 80% of silver was transported over a period of 5 h. The carrier can selectively and efficiently transport Ag(I) ion from aqueous solutions containing other cations such as Co2+, Cu2+, Zn2 +, Pb2+, Cr3+, Cd2+.
Keywords : 5,12-di(phenoxymethyl)-1,4-dioxa-7,10-dithiacyclododecane-2,3-dione, bulk liquid membrane, silver(I).
