Repositório do Conhecimento Institucional do Centro Universitário FEI
 

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URI permanente para esta coleçãohttps://repositorio.fei.edu.br/handle/FEI/800

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2011 - 20172

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Autor: search.filters.author.Hoga H.E.Assunto: search.filters.subject.Alcohols

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Agora exibindo 1 - 2 de 2
  • N/D
    Artigo 18 Citação(ões) na Scopus
    Thermodynamic and spectroscopic properties of binary mixtures of n-butylammonium butanoate ionic liquid with alcohols at T = (293.15–313.15) K
    (2017) Bittencourt S.S.; Hoga H.E.; Torres R.B.; d'Angelo J.V.H.
    © 2016 Elsevier LtdIn this work, density and speed of sound of binary mixtures of {n-butylammonium butanoate ionic liquid (N4Bu) + alcohols (methanol, ethanol, 1-propanol, 1-butanol and 1-pentanol)} have been measured as a function of composition at T = (293.15–313.15) K and atmospheric pressure. The results were used to calculate the excess molar volume, VmE, and deviation in isentropic compressibility, ΔκS, and correlated to the Redlich-Kister polynomial equation. N4Bu was synthesized by the method of acid-base neutralization reaction using n-butylamine and butanoic acid, and characterized using 1H NMR, 13C NMR and FTIR spectroscopy techniques. For all systems studied, the values of excess molar volumes and deviations in isentropic compressibility were negative over the entire composition range. The results obtained were discussed in terms of structural effects and intermolecular interactions between like and unlike molecules.
  • N/D
    Artigo 61 Citação(ões) na Scopus
    Volumetric and viscometric properties of binary mixtures of {methyl tert-butyl ether (MTBE) + alcohol} at several temperatures and p = 0.1 MPa: Experimental results and application of the ERAS model
    (2011) Hoga H.E.; Torres R.B.
    Densities and viscosities of binary mixtures of {methyl tert-butyl ether (MTBE) + methanol, or +ethanol, or +1-propanol, or +2-propanol, or +1-butanol, or +1-pentanol, or +1-hexanol} have been determined as a function of composition at several temperatures and atmospheric pressure. The temperatures studied were (293.15, 298.15, 303.15, and 308.15) K. The experimental results have been used to calculate the excess molar volume (VmE) and viscosity deviation (Δη). Both VmE and Δη values were negative over the entire range of mole fraction for all temperatures and systems studied. Moreover, the VmE values have been used to test the applicability of the Extended Real Associated Solution (ERAS) model. © 2011 Elsevier Ltd. All rights reserved.