Nitrocellulose Membrane, Modified by RC(S)NHP(X)(OiPr)2(X = S, R = PhNH; X = O, R = PhNH, Ph), for Sorption Extraction of Cobalt Cations

Autor: Maria G. Babashkina, Felix D. Sokolov, Axel Klein, Damir A. Safin
Rok vydání: 2010
Předmět:
Zdroj: Phosphorus, Sulfur, and Silicon and the Related Elements. 185:1815-1822
ISSN: 1563-5325
1042-6507
Popis: The complexation and extraction properties of RC(S)NHP(X)(OiPr)2 [X = S, R = PhNH (HLI); X = O, R = PhNH (HLII), Ph (HLIII)] towards cobalt cations were studied. The nitrocellulose membrane was used as a carrier for HLI−III. The maximal degree of extraction of cobalt cations from an aqueous solution is observed at pH = 7.8–8.4. It was established that complexes formed are kept in a water solution on a surface of the carrier and washed away in 96% aqueous ethanol. The membrane modified by HLI allows extraction and concentration of Co(II) selectively, while the modification by HLIII leads to the selective extraction of Co(III).
Databáze: OpenAIRE