Effect of temperature on the extraction of octahedral and tetrahedral cobalt(II) by 8-hydroxyquinoline and/or dibenzo-18-crown-6 or dibenzylamine

F. Shehata; S. El-Dessouky; H. Aly

doi:10.1007/bf02349155

Journal of Radioanalytical and Nuclear Chemistry

Volume/Issue:: Volume 240: Issue 1

Effect of temperature on the extraction of octahedral and tetrahedral cobalt(II) by 8-hydroxyquinoline and/or dibenzo-18-crown-6 or dibenzylamine

Authors:

F. Shehata

F. Shehata Atomic Energy Authority Hot Laboratories Centre 13759 Cairo Egypt

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S. El-Dessouky

S. El-Dessouky Atomic Energy Authority Hot Laboratories Centre 13759 Cairo Egypt

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H. Aly

H. Aly Atomic Energy Authority Hot Laboratories Centre 13759 Cairo Egypt

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Pages:: 209–214

Online Publication Date:: 10 Apr 2006

Publication Date:: 17 Apr 1999

Article Category:: Research Article

DOI:: https://doi.org/10.1007/bf02349155

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Abstract

The extraction behavior of octahedral and tetrahedral cobalt(II) complexes from aqueous nitrate medium was studied in the system 8-hydroxyquinoline (HOX) and dibenzo-18-crown-6 (Db 18C6) or dibenzylamine (DBA) in chloroform at different temperatures to evaluate the thermodynamic functions as well as the equilibrium constants of each reaction. The stoichiometry of the extracted organic phase species were established to be Co(OX)₂·Db18C6 for the octahedral cobalt and Co(OX)₂·DBA for the tetrahedral cobalt.

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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)