Thermodynamic study of binary mixtures containing 1-butylpyridinium tetrafluoroborate and methanol, or ethanol

García-Mardones, Mónica; Pérez-Gregorio, Víctor; Guerrero, Hernando; Bandrés, Isabel; Lafuente, Carlos

doi:10.1016/j.jct.2010.07.014

Cited by 31 publications

(20 citation statements)

References 36 publications

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“…In the case of the excess Gibbs free energy, G * E is positive over the whole mole fraction range due to the cohesive energy and size differences between unlike molecules compared to those between like molecules, ,− and this value becomes less positive as the chain length of 1-alkanol increases, as illustrated in Figures and . Moreover, G * E exhibits less positive values as the temperature increases (Figures and ).…”

Section: Results and Calculationsmentioning

confidence: 96%

Effect of the Alkyl Chain on the Physical Properties of Imidazolium-Based Ionic Liquids with 1-Propanol, 1-Butanol, and 1-Pentanol Binary Mixtures

2019

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Viscosities and surface tensions were measured at temperatures of 298.15, 303.15, 308.15, and 313.15 K and a pressure of 101.3 kPa for 1,3-dimethyl and 1-ethyl-3-methyl imidazolium methylsulfates ([dmim][MeSO4] and [emim][MeSO4], respectively) with 1-alcohols (propanol, butanol, and pentanol) over the whole range of mole fractions. The corresponding deviation properties and excess Gibbs free energy were calculated using the experimental data. Furthermore, the Redlich–Kister polynomial was used to correlate excess and deviation properties. The measured viscosities of the binary systems under study were used to test the applicability of empirical models to binary systems involving ionic liquids. The effect of the alkyl chain of the two ionic liquids on the measured and calculated properties is discussed.

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Section: Results and Calculationsmentioning

confidence: 96%

Effect of the Alkyl Chain on the Physical Properties of Imidazolium-Based Ionic Liquids with 1-Propanol, 1-Butanol, and 1-Pentanol Binary Mixtures

2019

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“…The database included papers in which experimental speed of sound data were reported for temperatures from 278.15 to 393.15 K and pressures from 0.1 to 200 MPa (142 articles), a paper in which experimental data are presented only as a plot (1 article), and works where only calculated values of speed of sound are available (22 articles) published in the period 2004–2014 (Table S1). ,,− ,− ,− ,,,,,− …”

Section: Experimental Methods and Data Treatmentmentioning

confidence: 99%

“…Isentropic compressibility of pure ILs at atmospheric pressure and at a given temperature or as a function of temperature, is request to gain a better understanding of inter-and intramolecular interactions including ions and substituent effects as well as for better and selective use in various chemical and industrial processes. [13][14][15]17,20,21,23,25,26,29,30,33,36,76,78,[80][81][82][83]85,[87][88][89][90]93,94,96,[102][103][104][107][108][109][110]115,[117][118][119][120][121]123,125,127,[129][130][131][132][133]…”

Section: Calculation Of Volumetric Properties and Thermodynamic Formamentioning

confidence: 99%

Speed of Sound and Ultrasound Absorption in Ionic Liquids

et al. 2017

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A complete review of the literature data on the speed of sound and ultrasound absorption in pure ionic liquids (ILs) is presented. Apart of the analysis of data published to date, the significance of the speed of sound in ILs is regarded. An analysis of experimental methods described in the literature to determine the speed of sound in ILs as a function of temperature and pressure is reported, and the relevance of ultrasound absorption in acoustic investigations is discussed. Careful attention was paid to highlight possible artifacts, and side phenomena related to the absorption and relaxation present in such measurements. Then, an overview of existing data is depicted to describe the temperature and pressure dependences on the speed of sound in ILs, as well as the impact of impurities in ILs on this property. A relation between ions structure and speeds of sound is presented by highlighting existing correlation and evaluative methods described in the literature. Importantly, a critical analysis of speeds of sound in ILs vs those in classical molecular solvents is presented to compare these two classes of compounds. The last part presents the importance of acoustic investigations for chemical engineering design and possible industrial applications of ILs.

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“…The DSA 5000 simultaneously determines two physically independent properties within one sample. The instrument is equipped with a density cell and a sound velocity cell combining the known oscillating U-tube method with a highly accurate measurement of speed of sound [14]. The density and speed of sound meter was calibrated against triple-distilled fresh water and air at atmospheric pressure.…”

Section: Methodsmentioning

confidence: 99%

“…For (tetralin + n-dodecane), the best performance was for Wada equation, at all temperatures. It is important to remark that the only difference between equations (13) and (14) is that the mixture molar volume in these equations is the experimental value in equation (13) and the ideal solution value in equation (14). As previously commented, binary tetralin mixtures with n-alkanes are asymmetrical in length, shape, and in chemical nature, and then ideal solution behavior is not expected to work for these mixtures.…”

Section: Tablementioning

confidence: 99%

Thermodynamic modeling and experimental speeds of sound, densities, and refractive indexes of (tetralin+n-dodecane)

Paredes¹,

Reis²,

Silva³

et al. 2012

The Journal of Chemical Thermodynamics

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Thermodynamic study of binary mixtures containing 1-butylpyridinium tetrafluoroborate and methanol, or ethanol

Cited by 31 publications

References 36 publications

Effect of the Alkyl Chain on the Physical Properties of Imidazolium-Based Ionic Liquids with 1-Propanol, 1-Butanol, and 1-Pentanol Binary Mixtures

Effect of the Alkyl Chain on the Physical Properties of Imidazolium-Based Ionic Liquids with 1-Propanol, 1-Butanol, and 1-Pentanol Binary Mixtures

Speed of Sound and Ultrasound Absorption in Ionic Liquids

Thermodynamic modeling and experimental speeds of sound, densities, and refractive indexes of (tetralin+n-dodecane)

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