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Solvent extraction equilibria of the nickel-3-(2-furyl)-2-mercaptopropenoic acid complex as an ion-pair with the diphenylguanidinium ion |
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| Authors: | Izquierdo A Prat M D Garbayo A |
| Institution: | Department of Analytical Chemistry, Faculty of Chemistry, University of Barcelona, Barcelona, Spain |
| Abstract: | The extraction of nickel from aqueous media (0.1M NaClO4) with 3-(2-furyl)-2-mercaptopropenoic acid (FMPA) in dichloroethane at 25° has been studied. The extraction is efficient only if a suitable counter-ion is present to form an ion-associate with the Ni—FMPA complex. The diphenylguanidinium ion has been found suitable as the counter-ion. |
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