European Journal of Chemistry 2012, 3(4), 399-403 | doi: https://doi.org/10.5155/eurjchem.3.4.399-403.675 | Get rights and content






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The effect of temperature on association constants and conductivities of ferrous chloride and ferric chloride in DMF-water mixtures


Süheyla Pura Ergin (1,*)

(1) Istanbul University, Engineering Faculty, Department of Chemistry, Avcilar, Istanbul, TR-34320, Turkey
(*) Corresponding Author

Received: 24 Aug 2012 | Revised: 27 Sep 2012 | Accepted: 28 Sep 2012 | Published: 31 Dec 2012 | Issue Date: December 2012

Abstract


Conductance measurements at five different temperatures varying from 288.15 to 328.15 K were performed for ferrous chloride (FeCl2) and ferric chloride (FeCl3) in 20-80 wt % in N,N-dimethylformamide (DMF)-water mixture. To analyze conductivity data, density and viscosity values of the DMF-water mixtures have been determined experimentally at the same temperatures. The conductivity data has been analyzed using the Kraus-Bray and Shedlovsky models. The limiting equivalent conductance values, the association constants (KA), thermodynamic parameters of association (Gibbs energy, enthalpy and entropy changes) for FeCl2 and FeCl3 were calculated and discussed depending on temperature and the composition of solvent mixture.

3_4_399_403_800_01


Keywords


Ferric chloride; Ferrous chloride; Association constant; DMF-water mixtures; Electrolytic conductivity ;Temperature dependence

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DOI: 10.5155/eurjchem.3.4.399-403.675

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[2]. Ujwala N. Patil, Bhalachandra L. Tembe
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[3]. Chandrani Guha, Bijan Das
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The Supplementary Material for this article can be found online at: Supplementary files

How to cite


Ergin, S. Eur. J. Chem. 2012, 3(4), 399-403. doi:10.5155/eurjchem.3.4.399-403.675
Ergin, S. The effect of temperature on association constants and conductivities of ferrous chloride and ferric chloride in DMF-water mixtures. Eur. J. Chem. 2012, 3(4), 399-403. doi:10.5155/eurjchem.3.4.399-403.675
Ergin, S. (2012). The effect of temperature on association constants and conductivities of ferrous chloride and ferric chloride in DMF-water mixtures. European Journal of Chemistry, 3(4), 399-403. doi:10.5155/eurjchem.3.4.399-403.675
Ergin, Süheyla. "The effect of temperature on association constants and conductivities of ferrous chloride and ferric chloride in DMF-water mixtures." European Journal of Chemistry [Online], 3.4 (2012): 399-403. Web. 25 Nov. 2020
Ergin, Süheyla. "The effect of temperature on association constants and conductivities of ferrous chloride and ferric chloride in DMF-water mixtures" European Journal of Chemistry [Online], Volume 3 Number 4 (31 December 2012)

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DOI Link: https://doi.org/10.5155/eurjchem.3.4.399-403.675

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