Solvent extraction of some divalent metal cations into nitrobenzene by using an anionic ligand based on cobalt bis(dicarbollide) anion with covalently bonded CMPO function | Health & Environmental Research Online (HERO)

Health & Environmental Research Online (HERO)

Print Feedback Export to File

This record has one attached file:

Citation
Tags

HERO ID

4793884

Reference Type

Journal Article

Title

Solvent extraction of some divalent metal cations into nitrobenzene by using an anionic ligand based on cobalt bis(dicarbollide) anion with covalently bonded CMPO function

Author(s)

Makrlik, E; Selucky, P; Vanura, P

Year

2012

Is Peer Reviewed?

Yes

Journal

Journal of Radioanalytical and Nuclear Chemistry
ISSN: 0236-5731
EISSN: 1588-2780

Volume

293

Issue

Page Numbers

103-106

DOI

10.1007/s10967-012-1770-6

Web of Science Id

WOS:000305228200014

Abstract

From extraction experiments and -activity measurements, the exchange extraction constants corresponding to the general equilibrium M2+(aq) + CaL2(nb) ML2(nb) + Ca2+(aq) taking place in the two-phase water-nitrobenzene system (M2+ = Mg2+, Sr2+, Ba2+, Cu2+, Zn2+, Cd2+, Pb2+, , Co2+, Ni2+, Mn2+; = anionic ligand based on cobalt bis(dicarbollide) anion with covalently bonded CMPO function; aq = aqueous phase, nb = nitrobenzene phase) were evaluated. Furthermore, the stability constants of the electroneutral complex species ML2 in water-saturated nitrobenzene were calculated; they were found to increase in the following cation order: Sr2+ < Ba2+, Ni2+ < Mg2+ < Co2+ < Zn2+, Cd2+ < Mn2+ < Cu2+ < Pb2+ < .

Keywords

Cobalt bis(dicarbollide) anion with covalently bonded CMPO function; Divalent metal cations; Extraction; Nitrobenzene; Stability constants