HIGHLY EFFICIENT AND SELECTIVE-MEMBRANE TRANSPORT OF SILVER(I) ION BYA COOPERATIVE CARRIER COMPOSED OF AZA-18-CROWN-6 AND PALMITIC ACID

Authors
SHAMSIPUR M AKHOND M
Citation
M. Shamsipur et M. Akhond, HIGHLY EFFICIENT AND SELECTIVE-MEMBRANE TRANSPORT OF SILVER(I) ION BYA COOPERATIVE CARRIER COMPOSED OF AZA-18-CROWN-6 AND PALMITIC ACID, Bulletin of the Chemical Society of Japan, 70(2), 1997, pp. 339-343
Citations number
21
Categorie Soggetti
Chemistry
Journal title
Bulletin of the Chemical Society of Japan → ACNP
ISSN journal
00092673
Volume
70
Issue
2
Year of publication
1997
Pages
339 - 343
Database
ISI
SICI code
0009-2673(1997)70:2<339:HEASTO>2.0.ZU;2-G
Abstract
A given mixture of aza-18-crown-6 and plamitic acid was found to be an excellent cooperative carrier for the efficient transport of Ag+ ions through a bulk liquid membrane. In the presence S2O32- ion, as a suit able metal ion acceptor in the receiving phase, the amount of silver t ransported across the liquid membrane after 90 min was 93.6+/-1.5%. Th e selectivity and efficiency of silver transport from aqueous solution s containing other cations such as Co2+, Ni2+, Cu2+, Zn2+, Cd2+, Pb2+, and Fe2+ ions were investigated. In the presence of diphosphate as a suitable masking agent in the source phase, the interfering effect of Cd2+ ion was eliminated.