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Influence of polyvinylalcohol on the solvation volumes of FeCl3 and CoCl2 in aqueous ethanol solutions

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Abstract

The effect of polyvinylalcohol (PVA) on molar, Van-der Waals and the electrostriction volumes of FeCl3 and CoCl2 in pure H2O and 50% ethanol (EtOH)–water mixtures was studied. Excess volumes were also calculated and their values were discussed in terms of Pierotti theory (Scaled Particle Theory). Different theoretical energy values were calculated to explain the following parameters: volumes, dispersion, induction energies and 6-12 Lennard–Jones parameters. The increase and the decrease in excess volumes of FeCl3, CoCl2 in the absence and in the presence of polyvinyl alcohol in both aqueous and 50% EtOH–H2O mixtures were also discussed in terms of the increase or decrease of different interaction energies.

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Authors and Affiliations

  1. Department of Chemistry & Department of Physics, Faculty of Science, Mansoura University, 35516, Mansoura, Egypt

    Maany A. Hamada & Nagah A. El-Shishtawi

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  1. Maany A. Hamada
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  2. Nagah A. El-Shishtawi
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Correspondence to Maany A. Hamada.

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Hamada, M.A., El-Shishtawi, N.A. Influence of polyvinylalcohol on the solvation volumes of FeCl3 and CoCl2 in aqueous ethanol solutions. Transition Met Chem 32, 425–429 (2007). https://doi.org/10.1007/s11243-006-0179-x

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  • DOI: https://doi.org/10.1007/s11243-006-0179-x

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