Density, Viscosity, and Surface Tension at 293.15 K and Liquid−Liquid Equilibria from 301.15 K to 363.15 K under Atmospheric Pressure for the Binary Mixture of Diethylene Glycol Diethyl Ether + Water

Abstract

Densities, viscosities, and surface tension have been measured as a function of composition for the binary liquid mixture of diethylene glycol diethyl ether + water at 293.15 K under atmospheric pressure. Densities were determined using a capillary pycnometer. Viscosities were measured with a Ubbelohde capillary viscometer. Surface tension was measured by means of the drop-volume technique. The estimated uncertainties of the measurements were (0.1% for density, (0.3% for viscosity, and (0.04 mN‚m -1 for surface tension. Liquid-liquid equilibrium data were also measured for the binary mixture in the temperature range from 301.15 K to 363.15 K. The compositions of both the top and bottom phases were analyzed by gas chromatography.

Excess Molar Volume and Viscosity Deviation for the Binary Mixture of Diethylene Glycol Monobutyl Ether + Water from (293.15 to 333.15) K at Atmospheric Pressure

“…They can be used as scrubbing liquids for the absorption of acid gases in the cleaning of exhaust air and gas streams from industrial production plants because of their favorable properties such as low vapor pressure, low toxicity, low viscosity, high chemical stability, and low melting temperature. 1 They are increasingly used as additives to gasoline due their octane-enhancing and pollution-reducing properties. On the other hand, hydroxyethers are nonionic amphiphile molecules, very effective as surfactants with a large number of applications.…”

New device for fast measuring surface tension, density and viscosity of liquids

“…Surface tension, density and viscosity are main physical parameters of liquids [1,2]. There has been a growing interest in fast measurement of surface tension, density and viscosity because they are critical parameters sensitive to material property changes caused by chemical reaction, solidification, gelation, and deposition of substances [3][4][5][6].…”

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

“…The higher density of carbamate than that of EAE is attributed to this decrease. As mutual solubility of DEGDEE and water is low in our temperature range, densities of the DEGDEE/water mixture cannot be obtained. It can be seen that the model replicates well the experimental data in binary mixtures.…”