Liquid–vapor phase equilibria and the thermodynamic properties of 2-methylpropanol–n-alkyl propanoate solutions

Suntsov, Yu. K.; Goryunov, V. A.; Chuikov, A. M.; Meshcheryakov, A. V.

doi:10.1134/s0036024416080288

Cited by 5 publications

(2 citation statements)

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“…The relative permittivity ε r is the crucial parameter in the molecular solvent system and it usually can be used to measure the polarity of molecular solvents. In this work, the values of refractive index, n D , molar volume, V m , and Δ l g H m o (298) were collected from the literature, − and according to eqs – δ μ of some molecular solvents were obtained. These are listed in Table , and the corresponding relative permittivity ε r for these molecular solvents were collected − and also listed in Table .…”

Section: Resultsmentioning

confidence: 99%

Determination and Prediction for the Polarity of Ionic Liquids

Guan¹,

Chang²,

Yang³

et al. 2017

J. Chem. Eng. Data

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Ionic liquids (ILs) have attracted remarkable attention as a new class of novel reaction medium and soft functional materials in the framework of Green Chemistry, and the polarity of ionic liquids is one of the primary concerns in the scientific community. Here, we introduce a new and simple scale of polarity, δ μ , for ILs. Initially, two kinds of representative ionic liquids, {1-alkyl-3-methyllimidazolium acetate}) are prepared and confirmed by 1 H NMR spectroscopy and 13 C NMR spectroscopy, respectively. Furthermore, a spectroscopic method based on solvatochromic probes is used to obtain the polarity of room temperature ILs (RTILs). In this work we mainly introduce that the scale of solvent polarity, E T (30) values, is determined by means of Reichardt's dye (30), and π* values are determined by N,N-diethyl-4-nitroaniline. Simultaneously, in terms of the values of enthalpy of vaporization, δ μ values of these ILs are predicted. Moreover, the trend of δ μ values of the ionic liquids with the different alkyl chains are the same as the E T (30) and π* values. In addition, the new scale of polarities δ μ of some molecular liquids are also predicted, and the results are in good agreement with relative permittivity, ε r .

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Section: Resultsmentioning

confidence: 99%

Determination and Prediction for the Polarity of Ionic Liquids

Guan¹,

Chang²,

Yang³

et al. 2017

J. Chem. Eng. Data

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“…This required from us conducting additional research of large. The liquid-vapor equilibrium for 33 binary systems and also their volume and thermodynamic properties were studied previously, for example [3][4][5]. In this work, an attempt was made to determine the relation between the contributions of intermolecular interactions to the thermodynamic functions of binary solutions and the molecular weights (structure) and the concentration of solution components.…”

Section: Introductionmentioning

confidence: 99%

New Method of Predicting the Thermodynamic Properties of Solutions

Konstantinovich¹

2014

JCCE

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Thermodynamic functions solutions of a 25 binary systems formed n-alcohols and esters of aliphatic acids by were calculated using the standards ideal solution and ideal gas. The value change regularity of the thermodynamic functions of solutions depending on their molar mass and concentration of the solutions' components was determined by the thermodynamic analysis. The method of prediction of the thermodynamic properties of binary solutions was suggested on the basis of the determined regularities. The corresponding equations were obtained.

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