Density, viscosity and refractive index of the dimethyl sulfoxide + o-xylene system

Abstract

This work reports the experimental results of the densities, viscosities and refractive indices between 298.15 and 323.15 K of the dimethyl sulfoxide + + o-xylene system over the entire composition range of the mixtures. The excess molar volumes (V E ), viscosity deviations ( ν), excess Gibbs energy of activation of viscous flow (G * E ) and deviations in the refraction ( R) were calculated from the experimental data; all the computed quantities were fitted to the Redlich-Kister equation. The system exhibits moderate negative values for the investigated excess properties. The resulting excess functions were interpreted in structural and interactional terms. From the experimental data, the thermodynamic functions of the activation of viscous flow were estimated. The viscosity data were correlated with several semi-empirical equations. The two-parameter McAllister equation can give very good results.

Density, transport properties and electrochemical potential windows for the 2-hydroxy-N,N,N-trimethylethanaminium chlorides based ionic liquids at several temperatures

“…The variation of specific conductivity values with temperature were obtained with the following standard deviations: s = 0.236 for ChCl + EG, s = 0.078 for ChCl + TEA and s = 0.270 for ChCl + OxA. The obtained values for all the three investigated systems are similar to those for other ChCl-based ILs [2,12,21,28,32] and support the hypothesis that these types of liquids are highly conducting, thereby confirming that the ionic species are dissociated in the liquid and can move independently.…”

Viscometric investigation of binary, ternary and quaternary liquid mixtures: Comparative evaluation of correlative and predictive models

“…McAllister [16] propounded the three body interaction approach and proposed the correlative model by developing the cubic equation on the basis of Eyring's absolute rate theory for calculating kinematic viscosities of liquid mixtures [28,29]. The equation takes the form:…”

“…All these equations have been extended [39,40] for ternary and quaternary systems in the present investigation.…”

“…The various predictive viscosity models employed are Bingham [7], Frenkel [8,17], Kendall-Munroe [17], Hind-Ubbelhode [23], Eyring [17], Gambill [24,25], Refutas [26] and SutherlandWassiljewa [17,27] relation. Seven correlative methods have also been employed viz., Hind [13,[28][29][30], Grunberg-Nissan, Wijk [13,31], KattiChaudhri, Tamura-Kurata [15,32], McAllister 3 body [16] and 4 body [13,33] models. Furthermore, a modified McAllister relation pioneered by Nhaesi-Asfour [34] has also been utilized which employs a method for calculating values of the binary interaction parameters of the McAllister 3 body model by using the pure component properties.…”

Electrodeposition of Magnetic SmCo Films from Deep Eutectic Solvents and Choline Chloride-Ethylene Glycol Mixtures

“…18,19 Thus, by changing the choline chloride concentration in the interval considered, the physical properties of the system are maintained, considering EG as HBD. The different concentration of hydrogen bond acceptor (HBA) allows to have an additional control on alloy film composition.…”