Organic Solvent Effect, Thermodynamic Study and Synergism Behavior for Extraction Efficiency of Cobalt (II) Complex with 1-[2-Pyridyl Azo] -2-Naphthol

Ibtehaj R. Ali; Shawket. K. Jawad; Fatimah A. Wannas

Organic Solvent Effect, Thermodynamic Study and Synergism Behavior for Extraction Efficiency of Cobalt (II) Complex with 1-[2-Pyridyl Azo] -2-Naphthol

Ibtehaj R. Ali * §

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Shawket. K. Jawad §

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Fatimah A. Wannas §

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§ Kufa University

Organic Solvent Effect, Thermodynamic Study and Synergism Behavior for Extraction Efficiency of Cobalt (II) Complex with 1-[2-Pyridyl Azo] -2-Naphthol

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Abstract

After pinpoint all optimum conditions for extraction Cobalt(II) as ion pair association complex or chleated complex with complexing agent 1-[2-pyridyl azo] -2-naphthol which dimonirtrate λ max for complex extracted was (446nm.) more stable complex formation was at pH= 7 and 60 µg Co(II)/5ml with 1×10 -4 M 1-[2-pyridyl azo] -2-naphthol[PAN] dissolved in chloroform and shaking time 10 minutes. The stoichiometry of complex extracted to the organic phase was 1:1 metal : PAN [Co(PAN) + Cl -] or [Co(PAN)] + (Cl -).Extraction method was endothermic as well as thermodynamic parameters after calculated was ∆H ex = 0.0149 KJmol -, ∆G ex = -58.81 KJ mol -and ∆S ex = 176.55 J mol -. Synergism study show from the slope is appear there is one molecule of TBP or MIBK participated in the structure of complex extracted to the organic phase.

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Funding

No external funding was declared for this work.

Conflict of Interest

The authors declare no conflict of interest.

Ethical Approval

No ethics committee approval was required for this article type.

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How to Cite This Article

Ibtehaj R. Ali, Shawket. K. Jawad, Fatimah A. Wannas. 2016. "Organic Solvent Effect, Thermodynamic Study and Synergism Behavior for Extraction Efficiency of Cobalt (II) Complex with 1-[2-Pyridyl Azo] -2-Naphthol". Global Journal of Science Frontier Research - B: Chemistry GJSFR-B Volume 16 (GJSFR Volume 16 Issue B1).

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GJSFR Volume 16 Issue B1

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Journal Specifications

Crossref Journal DOI 10.17406/GJSFR

Print ISSN 0975-5896

e-ISSN 2249-4626

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Classification

GJSFR-B Classification FOR Code: 030599

Submission ReceivedDecember 18, 2015
Peer Review Double Blind
Handling Editor
Accepted January 13, 2016
Published January 23, 2016

Version of record

v1.2

Issue date

March 1, 2016

Language

English

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Article Matrices

Total Score: 104

Country: Iraq

Subject: Global Journal of Science Frontier Research - B: Chemistry

Authors: Shawket. K. Jawad, Fatimah A. Wannas, Jihan. R. Maslim, Ibtehaj R. Ali (PhD/Dr. count: 0)

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