European Journal of Chemistry

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

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Süheyla Pura Ergin


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.


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Ergin, S. P. The Effect of Temperature on Association Constants and Conductivities of Ferrous Chloride and Ferric Chloride in DMF-Water Mixtures. Eur. J. Chem. 2012, 3, 399-403.

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