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(Referência obtida automaticamente do Web of Science, por meio da informação sobre o financiamento pela FAPESP e o número do processo correspondente, incluída na publicação pelos autores.)

Thermodynamic and spectroscopic properties of binary mixtures of n-butylammonium butanoate ionic liquid with alcohols at T = (293.15-313.15) K

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Autor(es):
Bittencourt, Samara Storion ; Hoga, Heloisa Emi ; Torres, Ricardo Belchior ; Hallak d'Angelo, Jose Vicente
Número total de Autores: 4
Tipo de documento: Artigo Científico
Fonte: JOURNAL OF CHEMICAL THERMODYNAMICS; v. 105, p. 238-252, FEB 2017.
Citações Web of Science: 6
Resumo

In 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, V-m(E), and deviation in isentropic compressibility, Delta Kappa(s), 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 H-1 NMR, C-13 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. (C) 2016 Elsevier Ltd. (AU)

Processo FAPESP: 09/14556-5 - Propriedades volumétricas, de transportes e acústicas de sistemas binários contendo líquidos iônicos: estudo experimental e modelagem
Beneficiário:Ricardo Belchior Tôrres
Modalidade de apoio: Auxílio à Pesquisa - Regular