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Title: Organophosphorus reagents as extractants: Part 2-Synergic effect of triphenylphosphine oxide on the extraction of Co(II)/Zn(II) from binary mixtures with Cr(III), Ag(I), Hg(II), Mg(II) or Al(III) using 8-hydroxyquinoline
Authors: Lobana, Tarlok S
Bhatia, Pushvinder K
Issue Date: Sep-1990
Publisher: NISCAIR-CSIR, India

Suitable combinations of 8-hydroxyquinoline (HQ) and triphenylphosphine oxide(Ph3PO) show synergism of 10-12% in the extraction of Co(II) and Zn(II) compared to the use of HQ alone. At the synergic points, Co(II)/Zn(II) are separated from their binary mixtures with Cr(III), Ag(I), Hg(II), Mg(II) or Al(III). The recovery is 95-97% and the nature of the species is CoQ2(Ph3PO) and ZnQ2(Ph3PO)2 respectively for Co(II) and Zn(II). The effects of pH of solutions, dilution of the phases and various anions are studied.

Page(s): 933-935
ISSN: 0975-0975(Online); 0376-4710(Print)
Appears in Collections:IJC-A Vol.29A(09) [September 1990]

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