xperimental study and correlation of the excess molar volume of binary liquid solutions of (amines plus water) at different temperatures and atmospheric pressur

Author(s)

Riveros Munoz, Pablo Andes ^[1] ; Olivieri, Gustavo Vieira ^[1] ; dos Santos, Ronaldo Goncalves ^[1] ; Torres, Ricardo Belchior ^[1]

Affiliation

^[1] Ctr Univ FEI, Dept Engn Quim, BR-09850901 Sao Bernardo Do Campo, SP - Brazil

• Document type: Journal article
• Source: Brazilian Journal of Chemical Engineering; v. 39, n. 1 SEP 2021.
• Web of Science Citations: 0

Abstract

Experimental data of density have been measured for binary liquid mixtures containing [amines (n-butylamine, or s-butylamine, or t-butylamine, or diethylamine, or propylamine) + water], over the entire range of composition at temperatures between 283.15 and 303.15 K, and atmospheric pressure. The density values enabled the determination of the thermal expansion coefficients. The excess molar volume, V-m(E), was calculated using the experimental data, from which a Redlich-Kister type polynomial was fit, enabling the determination of the partial molar volumes, the excess partial molar volumes, the apparent molar volumes and the excess partial molar volumes at infinite dilution. The V-m(E) values were also used to test the applicability of the Extended Real Associated Solution Model (ERAS Model). The results for the studied systems suggest that structural effects and chemical interactions must predominate over other possible effects. The magnitude of V-m(E) for the studies systems led to the following order: n-butylamine > propylamine > s-butylamine > diethylamine > t-butylamine. (AU)

• FAPESP's process: 16/02652-3 - Experimental study and modeling of thermodynamics properties of binary systems containing {dimethyl carbonate (DMC) + alcohols} at high pressure
• Grantee: Gustavo Vieira Olivieri
• Support Opportunities: Scholarships in Brazil - Master