Density, Speed of Sound, Viscosity, and Excess Properties of N-Ethyl-2-pyrrolidone + 2-(Methylamino)ethanol [or 2-(Ethylamino)ethanol] from T = (293.15 to 323.15) K

Abstract

Density, speed of sound, and viscosity of the binary mixtures N-ethyl-2-pyrrolidone (EP) + 2-(methylamino)ethanol [or 2-(ethylamino)ethanol] were measured at different temperatures from (293.15 to 323.15) K and over the entire range of concentrations. The excess isentropic compressibility, excess molar volumes, and viscosity deviations were calculated. Beside, the excess molar volumes were fitted using a Redlich−Kister equation, and the viscosity data were fitted by the Grunberg−Nissan model.

Density and Viscosity Calculation of a Quaternary System of Amine Absorbents before and after Carbon Dioxide Absorption

“…9. In EAE viscosity measurement, our work deviates from literature data at 3.60, 5.94, and 3.34% (Garci ́a-Abui ́n et al, 16 A ́lvarez et al, 24 Furthermore, the viscosities of EAE aqueous solutions at various weight fractions were calculated and compared with literature data (Figure 10). 17,24,34 34 the more hydrophobic a compound is, the greater the viscosity maxima shift to the water-rich region.…”

“…The deviations between calculated and experimental data are presented in Figure 7. The solutions for calibration (filled 16 (open squares), A ́lvarez et al 24 (open triangles), Chowdhury et al 34 (open circles), and this work (+). Pure DEGDEE: Ku and Tu 28 (solid circles), Esteve et al 29 (solid triangles), and this work (×).…”

“…S9 and S10). 16,24,28,29,34 A graphical comparison is shown in Figure 1. For pure EAE, the AARDs from Garci ́a-Abui ́n et al, 16 A ́lvarez et al, 24 and Chowdhury et al 34 are 0.20, 0.17, and 0.11%, respectively.…”

“…Viscosities of pure EAE and DEGDEE at different temperatures. Pure EAE: Garci ́a-Abui ́n et al16 (open squares), A ́lvarez et al24 (open triangles), Chowdhury et al34 (open circles), and this work (+). Pure DEGDEE: Ku and Tu 28 (solid circles), Esteve et al29 (solid triangles), and this work (×).…”

“…The Grunberg−Nissan model 16,24,25 modified the Arrhenius formulation with adjustable parameters for calculating the mixture viscosity. It estimates the viscosity from ideal mixing and the excess part of viscosity as in eq 13…”