The viscosity of liquid mixtures

Abstract

The theory of viscosity of liquid mixtures presented here is based on Eyring's theory of absolute reaction rates. The most important conclusions drawn are that for liquids the free energies of activation for viscosity are additive on a number fraction or mole fraction basis and that interactions of like and unlike molecules must be considered. Methanol-toluene, benzenetoluene, and cyclohexane-heptane systems were analyzed with a three-body model and found to fit within the accuracy of the experimental data. Acetone-water mixtures fit a four-body interaction much better. Indications are that to describe acetone-water mixtures well would require consideration of seven-or eight-body interactions.

Rheology of Laponite-scleroglucan hydrogels

“…Here, the logarithms of 0 , G 1Hz and G 1Hz are chosen as the reference quantities for examining the blending effects. In analogy with the correlation equations, often used for dynamic or kinematic viscosities of Newtonian liquids mixtures (Grunberg & Nissan, 1949;McAllister, 1960), linear additivity is assumed for such quantities in absence of polymer-clay interactions and, consequently, positive or negative synergistic effects are measured by the excess functions. i.e.…”

Thermophysical and Acoustical Properties of Benzylparaben with Benzene at Temperatures of 303.15, 308.15 and 313.15 K

“…The viscosities of mixtures of benzylparaben with benzene have been correlated with the model proposed by McAllister [24] for a twocomponent mixture considering three body interactions. (18) In equation, ν 1 and ν 2 refer to the kinematic viscosity of pure liquids 1 and 2 having mole fractions X 1 and X 2 , respectively.…”

The Strongest Acid: Protonation of Carbon Dioxide

“…[37] High level electronic structure calculations were also performed using the coupled cluster singles and doubles method (CCSD). [38] The correlation consistent aug-cc-pvtz basis set was used for all calculations.…”