Thermodynamic Properties of Solutions of Ethacrylic Acid in Acetonitrile and Acetic Acid

Abstract

Abstract. The saturated vapor pressure of ethacrylic acid solutions in acetonitrile and acetic acid was measured by a static tensimetric method in the temperature range of 295-355 K. The composition of the equilibrium phases as well as the activity coefficients were received from the experimental measurements of the temperature-dependent saturated vapor pressure. We then used the temperature and concentration dependent activity coefficients to calculate the excess thermodynamic functions of the solutions mixing (H E , G E , S E ).

Thermodynamic Properties of Butyl Methacrylate Solutions in Organic Solvents

“…Further, we calculated the partial vapor pressure of the components using the Duhem-Margules equation [9,10], assuming that the gas phase was close to an ideal gas phase. The equation was solved by the Runge method, integrating in the direction of increased pressure.…”

“…We measured the saturated vapor pressure of the solutions with constant compositions at various temperatures on the basis of static methodology approach [10].…”

“…This article is a continuation of our publications about properties of solutions of acrylic-based acids and their esters [8][9][10][11][12][13]. In this work, to estimate the thermodynamic functions of mixing based on the vapor-liquid equilibrium, we adopted the commonly used methodology developed by Belousov and Morachevsky [14].…”

Method for Obtaining Isothermal Diagrams of the Liquid - Vapor Equilibrium for the System as Dimethyl Zinc - Dimethyl Telluride

“…These characteristics can be obtained by direct measurement of necessary parameters such as mixing enthalpy, 1,2 and excess volumes 3 or calculated on the basis of liquid-vapor equilibrium data using the Duhem-Margules equation or local composition models. [4][5][6] This work is a continuation of a series of works on the study of liquid-vapor equilibrium in binary organometallic systems. Previously, [7][8][9][10] based on the results of the temperature dependence of the saturated vapor pressure on equimolecular solutions of dimethylzinc-dimethylselenium and dimethyltelluride-dimethylcadmium in the range of 280-340 K, we established that the specified systems in the liquid phase manifest themselves as single components, which completely dissociate into their component substances during the transition into the gas phase, which indicates the presence of an azeotrope (at x=0.5).…”

The Enthalpy of Mixing of the Laurylmethacrylate with Some Organic Solvents

“…This article is a continuation of a series of the recent publications [1][2][3][4][5] on the general characterization of the molecular interactions between solvents and acrylic monomers, and in particular, on the influence of the chemical structure of the solutes. The methacrylic esters and hexane, benzene, 1,2-diclorethane and acetic acid are important industrial chemicals used in the large-scale preparation of engineering and performance polymers.…”