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Thermodynamic properties of binary mixtures of n-butylammonium-based ionic liquids with ethanol at T = (293.15–313.15) K

Bittencourt, Samara Storion ; Hoga, Heloisa Emi ; Torres, Ricardo Belchior ; d’Angelo, José Vicente Hallak

Journal of thermal analysis and calorimetry, 2019-02, Vol.135 (4), p.2519-2539 [Periódico revisado por pares]

Cham: Springer International Publishing

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Título:
Thermodynamic properties of binary mixtures of n-butylammonium-based ionic liquids with ethanol at T = (293.15–313.15) K
Autor: Bittencourt, Samara Storion ; Hoga, Heloisa Emi ; Torres, Ricardo Belchior ; d’Angelo, José Vicente Hallak
Assuntos: Activation energy ; Analytical Chemistry ; Binary mixtures ; Chemistry ; Chemistry and Materials Science ; Composition ; Compressibility ; Deviation ; Esters ; Ethanol ; Flow-density-speed relationships ; Fourier transforms ; Inorganic Chemistry ; Ionic liquids ; Ions ; Measurement Science and Instrumentation ; Molar volume ; NMR ; Nuclear magnetic resonance ; Nuclear magnetic resonance spectroscopy ; Physical Chemistry ; Polymer Sciences ; Polynomials ; Solvents ; Spectroscopy ; Thermodynamic properties ; Thermodynamics ; Viscosity ; Viscous flow
É parte de: Journal of thermal analysis and calorimetry, 2019-02, Vol.135 (4), p.2519-2539
Descrição: In this study, density, speed of sound and viscosity of binary mixtures of ionic liquids + ethanol have been measured as a function of composition at T = (293.15–313.15) K and atmospheric pressure. The ionic liquids studied were: { n -butylammonium acetate (N4Ace), n -butylammonium propanoate (N4Pro), n -butylammonium hexanoate (N4Hex), and n -butylammonium decanoate (N4Dec)}. Excess molar volume, V m E , deviation in isentropic compressibility, Δ κ S , deviation in viscosity, Δ η , and excess Gibbs energy of activation of viscous flow, Δ G ∗ E , were obtained from experimental results and correlated with the Redlich–Kister polynomial equation. Ionic liquids were synthesized and characterized using 1 H-NMR, 13 C-NMR and FTIR spectroscopy techniques. For all systems studied, the values of V m E , Δ κ S and Δ η were negative over the entire composition range, whereas Δ G ∗ E values were positive over the entire composition range. The results obtained were discussed in terms of structural effects and intermolecular interactions between like and unlike molecules.
Editor: Cham: Springer International Publishing
Idioma: Inglês

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Thermodynamic properties of binary mixtures of n-butylammonium-based ionic liquids with ethanol at T = (293.15–313.15) K

Bittencourt, Samara Storion ; Hoga, Heloisa Emi ; Torres, Ricardo Belchior ; d’Angelo, José Vicente Hallak

Cham: Springer International Publishing

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