Volumetric properties of the (tetrahydrofuran + water) and (tetra-n-butyl ammonium bromide + water) systems: Experimental measurements and correlations

Veronica Belandria (1) , Amir H. Mohammadi (1) , Dominique Richon (1)

1 CEP/Fontainebleau

In this communication, we report experimental density data for the binary mixtures of (water + tetrahydrofuran) and (water + tetra-n-butyl ammonium bromide) at atmospheric pressure and various temperatures. The densities were measured using an Anton Paar (TM) digital vibrating-tube densimeter. For the (tetrahydrofuran + water) system, excess molar volumes have been calculated using the experimental densities and correlated using the Redlich-Kister equation. The Redlich-Kister equation parameters have been adjusted on experimental results. The partial molar volumes and partial excess molar volumes at infinite dilution have also been calculated for each component. A simple density equation was finally applied to correlate the measured density of the (tetra-n-butyl ammonium bromide + water) system.

Mots clés: Tetrahydrofuran; Tetra-n-butyl ammonium bromide; Water; Density; Excess molar volume; Hydrate crystallization; Mixtures; Viscosity; Densities; CO2

Domaines: Thermique [physics.class-ph]; Thermique [physics.class-ph]; Chimie organique

Veronica Belandria, Amir H. Mohammadi, Dominique Richon. Volumetric properties of the (tetrahydrofuran + water) and (tetra-n-butyl ammonium bromide + water) systems: Experimental measurements and correlations. Journal of Chemical Thermodynamics, 2009, 41 (12), pp.1382-1386. ⟨10.1016/j.jct.2009.06.014⟩. ⟨hal-00509618⟩