LIQUID-LIQUID EXTRACTION OF METAL IONS WITH AMIDO PODANDS
- 1 July 1991
- journal article
- research article
- Published by Taylor & Francis in Solvent Extraction and Ion Exchange
- Vol. 9 (3) , 459-469
- https://doi.org/10.1080/07366299108918064
Abstract
The extraction properties of ami do podands 1 - 3_ have been investigated. The ether dicarboxylic acid diamide i shows a clear preference for the extration of rare earth metal ions Yb(III)-, La(III) and the alkaline-earth metal ions Ca(II), Sr(II) as well. Due to the presence of the carboxylic group the ether dicarboxylic acid monoamide, 2. extracts the ions of the 3d-elements Cu(II), Co(II) and Zn(II), too. High distribution ratios have been obtained mainly for soft and medium-hard transition metal ions with the N-alkyl imino diacetic acid diamide 3_. Under the experimentally chosen conditions, alkali metal ions such as Na(I) and K(I) are practically not extracted by the investigated amido podands.Keywords
This publication has 8 references indexed in Scilit:
- Modellierung von Extraktionsgleichgewichten auf der Grundlage des Marquardt-VerfahrensAnalytica Chimica Acta, 1990
- Un tetralactame macrocyclique derive de l'acide dioxa-3,6 octanedioique, nouvel ionophore neutre selectif du calciumTetrahedron Letters, 1987
- Neutral carrier based calcium(2+)-selective electrode with detection limit in the sub-nanomolar rangeAnalytical Chemistry, 1986
- Hochselektive Extraktion von Uranyl‐Ionen mit acyclischen Liganden, die L‐Phenylalaninreste enthaltenAngewandte Chemie, 1983
- Chiral aminoacid containing acyclic ligands-I. Syntheses and conformationsTetrahedron, 1982
- New synthetic calcium selective ionophores. Design, synthesis, and transport propertiesJournal of Medicinal Chemistry, 1978
- NEW SYNTHETIC CALCIUM‐SELECTIVE IONOPHORESAnnals of the New York Academy of Sciences, 1978
- The preparation and properties of neutral diamide ionophores for group IIa metal cationsTetrahedron, 1977