Influence of diluent on the synergic extraction of divalent cobalt by the thenoyltrifluoroacetone-tribenzylamine perchlorate system

H. Aly; M. Raieh; S. Mohamed; A. Abdel-Rassoul

doi:10.1007/bf02519912

Journal of Radioanalytical and Nuclear Chemistry

Volume/Issue:: Volume 49: Issue 2

Influence of diluent on the synergic extraction of divalent cobalt by the thenoyltrifluoroacetone-tribenzylamine perchlorate system

Authors:

H. Aly

H. Aly Atomic Energy Establishment Nuclear Chemistry Department Cario (Egypt)

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M. Raieh

M. Raieh Atomic Energy Establishment Nuclear Chemistry Department Cario (Egypt)

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S. Mohamed

S. Mohamed Atomic Energy Establishment Nuclear Chemistry Department Cario (Egypt)

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A. Abdel-Rassoul

A. Abdel-Rassoul Atomic Energy Establishment Nuclear Chemistry Department Cario (Egypt)

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Pages:: 213–224

Online Publication Date:: 09 Jan 2007

Publication Date:: 01 Sep 1979

Article Category:: Research Article

DOI:: https://doi.org/10.1007/bf02519912

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Abstract

The effect of ten pure diluents and different mixtures of nitrobenzene and toluene on the synergic extraction of Co²⁺ by the thenoyltrifluoroacetone (HTTA)-tribenzylamine (TBA) mixture is studied. The logarithm of the extraction constant of Co(TTA)₂ increases with increasing dielectric constant of the diluent, whereas the logarithm of the formation constant of the extracted adduct Co(TTA)₂TBA decreases with increasing dielectric constant of the diluent. This behaviour is explained by changes in the hydrophobic character of the extracted species. The theory of regular solutions is successfully applied to the extracted adduct. Consideration of the self-association of the amine salt is necessary in the treatment of the equilibria involved.

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Journal of Radioanalytical and Nuclear Chemistry

Print ISSN:: 0236-5731

Online ISSN:: 1588-2780

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Journal of Radionalytical and Nuclear Chemistry
Language	English
Size	A4
Year of Foundation	1968
Volumes per Year	1
Issues per Year	12
Founder	Akadémiai Kiadó
Founder's Address	H-1117 Budapest, Hungary 1516 Budapest, PO Box 245.
Publisher	Akadémiai Kiadó Springer Nature Switzerland AG
Publisher's Address	H-1117 Budapest, Hungary 1516 Budapest, PO Box 245. CH-6330 Cham, Switzerland Gewerbestrasse 11.
Responsible Publisher	Chief Executive Officer, Akadémiai Kiadó
ISSN	0236-5731 (Print)
ISSN	1588-2780 (Online)