Liquid Density Measurements of Diethylene Glycol Monoalkyl Ethers as a Function of Temperature and Pressure

Abstract

In this work, 144 new experimental density values are reported for diethylene glycol monomethyl ether (DEGME) and diethylene glycol monoethyl ether (DEGEE) in the compressed liquid phase between 283.15 K and 353.15 K for pressures up to 25 MPa. The density measurements were performed with an Anton Paar DMA 60/512P vibrating tube densimeter and then correlated by using a Tammann−Tait equation with standard deviations of 1 × 10-4 g·cm-3. The isothermal compressibility, the isobaric thermal expansivity, and the internal pressure have been determined from the density data. The isothermal compressibility and isobaric thermal expansivity values increase with the size of the diethylene glycol monoalkyl ether molecule. The internal pressure values are lower for DEGEE than for DEGME.

PC-SAFT Modeling of Phase Equilibria Relevant for Lipid-Based Drug Delivery Systems

“…The pure-component parameters of carbitol were fitted in this work to experimental vapor pressures and densities taken from literature. , …”

Specific volume and compressibility measurements of tomato paste at moderately high pressure as a function of temperature

“…Asada et al (2002) also determined the specific volume of water, from 253 K to 298 K and from 200 MPa to 350 MPa, with an estimated uncertainty lower than ±0.1%. Pecar and Dolecek (2003), Piñeiro et al (2003) and López et al (2004) determined the specific volume of different liquids from density measurements by using a densimeter up to 40 MPa with an uncertainty of ±0.01%.…”

Investigation of Volumetric Properties of Some Glycol Ethers Using a Simple Equation of State

“…The functions used for calculating these properties using the GMA EoS (16) and (17)) for the Glycol Ethers Studied [10], (c) DEGME [5], (d) DEGEE [5], (e) TriEGDME [6], and (f) TEGDME [6] The statistical parameters corresponding to calculations of α P , κ T , and P i and the number of points have been given in Table VI. The values of the statistical parameters show that the GMA EoS can predict these thermophysical properties very well in comparison with experimental data.…”

“…Due to their mild odor, glycol ethers are used as solvents for many resins, waxes, fats, and dyestuffs. The ability of the product to improve penetration makes it attractive for non-grain-raising wood stains, spirit-type dyes, and textile dye pastes [5]. Among the different glycol ethers, polyalkylene glycol dimethyl ethers are good candidates as absorbents for several refrigerants in absorption refrigeration systems and have also been selected as lubricants for HFC refrigerants in automobile air-conditioners [6].…”