Densities and Viscosities of Triethylene Glycol Monomethyl Ether +Water Solutions in the Temperature Interval 25 °C−80 °C

Abstract

The density and viscosity of aqueous solutins of triethylene glycol monomethyl ether have been measured at five temperatures in the range 25°C-80°C throughout the whole concentration range. Excess volume and viscosity deviation values were calculated and correlated as a function of composition. The results are compared with other data when these were available. The derived excess molar volumes, viscosity deviations, apparent molar volumes, and partial molar volumes at infinite dilution and the GrunbergNissan interaction energy constants are reported. The values obtained can be used to understand the nature and extent of the patterns of molecular aggregation that exist in binary (water + organic) mixtures and their sensitivity to variations in compositions, temperature, and molecular structure. Knowledge of the effect of temperature and composition on changes in the liquid density and viscosity is required in the modeling of mass transfer, heat transfer, and fluid flow.

Physical properties of {anisole+n-alkanes} at temperatures between (293.15 and 303.15) K

“…The results show that deviation of V E , increases with the increase of chain length of n-alkanes, while the temperature has little effect. According to Grunberg and Nissan [2] the adjustable binary parameter G 12 , is regarded as measurement of the strength of interactions between the mixing species [14]. The values of G 12 , as shown in table 4, are negative for all the investigated systems, which indicate a positive deviation from RaoultÕs law and support the notion of the formation of dispersion force as intermolecular interaction between unlike molecules.…”

Thermodynamic and optical studies of some ethylene glycol ethers in aqueous solutions at T=298.15K

“…Also the formation of hydrogen bonds is enhanced by the presence of ether oxygen in the glycol ether molecule [9]. Secondly, the effect which gives a negative contribution to V E is due the differences in molecular size between the solute and solvent molecules which might allow accommodation of glycol ether molecules in the structured water lattice, a void space [34][35][36].…”

Densities and viscosities for binary mixtures of phenetole with 1-pentanol, 1-hexanol, 1-heptanol, 1-octanol, 1-nonanol, and 1-decanol at different temperatures

“…According to Grunberg and Nissan [3], the adjustable binary parameter, A ij , mentioned in Eq. (6) is regarded as measure of the strength of interactions between the mixing species [28]. The values of A ij , as shown in Table 9, are negative for all the investigated systems.…”