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Excess enthalpies of aqueous solutions of polyols at 25°

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Abstract

The excess enthalpies of aqueous solutions of nine polyols were determined at 25°C and reported in the virial form. The most interesting and new feature of this family of solutes is that the sign of the enthalpic pair interaction coefficients hxx is positive for the first members of the series and negative for the higher homologues. Other points are the large differences found among the values of hxx for stereoisomers, whereas pairs of enantiomers show the same values within experimental errors. An application of the group additivity method is also discussed.

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Authors and Affiliations

  1. Instituto Chimica, University of Naples, via Mezzocannone 4, 80134, Naples, Italy

    Guido Barone, Bruno Bove, Giuseppina Castronuovo & Vittorio Elia

Authors
  1. Guido Barone
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  2. Bruno Bove
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  3. Giuseppina Castronuovo
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  4. Vittorio Elia
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Barone, G., Bove, B., Castronuovo, G. et al. Excess enthalpies of aqueous solutions of polyols at 25°. J Solution Chem 10, 803–809 (1981). https://doi.org/10.1007/BF00649490

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  • DOI: https://doi.org/10.1007/BF00649490

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