Thermodynamics of binary mixtures containing oxaalkanes. Part 3. Monoethers, polyethers, acetals, orthoesters and cyclic monoethers + n-alkanes or cyclohexane

Review of thermophysical property measurements on mixtures containing MTBE, TAME, and other ethers with non-polar solvents

Liquid densities and heat capacities at 1 MPa, and kinematic viscosities at atmospheric pressure of monoethylene glycol dimethyl ether (MEGDME), diethylene glycol dimethyl ether (DEGDME), triethylene glycol dimethyl ether (TrEGDME), tetrathylene glycol dimethyl ether (TEGDME), pentaethylene glycol dimethyl ether (PeEGDME), and polyethylene glycol 250 dimethyl ether (PEGDME 250) were measured in the temperature range from 283.15 to 423.15 K. For each substance, experimental data were correlated with temperature using empirical polynomial equations. The experimental data were also used to evaluate the predictive capability of some estimation methods of liquid densities and heat capacities for the studied ethylene glycol dimethyl ethers. The densities estimated by the Yen–Woods equation agree with our experimental values with a root-mean-square relative deviation (RMSD) of 3.21% for all ethylene glycol dimethyl ethers. The best estimated results of liquid heat capacities were obtained from the Rowlinson equation based on the corresponding-states principle, with a RMSD of 1.12%. The group-contribution methods give the worst results, especially at high temperatures.

Liquid Densities, Kinematic Viscosities, and Heat Capacities of Some Ethylene Glycol Dimethyl Ethers at Temperatures from 283.15 to 423.15 K

Densities, viscosities, and refractive indices of the ternary system acetone + ethanol + 2,2,4-trimethylpentane at T = 298.15 K and the binary systems acetone + ethanol, acetone + 2,2,4-trimethylpentane, and ethanol + 2,2,4-trimethylpentane were measured at T = (288.15, 298.15, and 308.15) K and atmospheric pressure over the whole composition range. Densities were determined using a vibrating-tube density meter. Viscosities were measured with an automatic Ubbelohde capillary viscometer. Refractive indices were measured using a digital Abbe-type refractometer. Excess molar volumes VE, deviations in the viscosity from the mole fraction average Δη, and deviations in the refractive index from the volume fraction average ΔnD for the mixtures were derived from experimental data. The binary and ternary data of VE, Δη, and ΔnD were correlated with liquid composition by using the Redlich−Kister and Cibulka equations.

Densities, Viscosities, and Refractive Indices for Binary and Ternary Mixtures of Acetone, Ethanol, and 2,2,4-Trimethylpentane

Thermodynamics of (1-alkanol + linear monoether) systems

Excess molar enthalpies of methyl tert-butyl ether + n-hexane + (n-decane or n-dodecane) ternary mixtures at 298.15 K

Excess enthalpies for (di-n-propyl ether + n-alkane) at 298.15 K

Excess enthalpies of (ethanol + hexane + decane or dodecane) at the temperature 298.15 K

Excess enthalpies of {(ethanol or propan-1-ol or methyl 1,1-dimethylethyl ether) + (2,3-dimethylbutane or 2,2,4-trimethylpentane)}

Excess enthalpies, measured at 298.15 K in a flow microcalorimeter, arereported for the ternary systems C 3 H 7 OH (1)+C 6 H 14 (2)+C v H 2v+2 (3) with v=10 and 12. Smooth representations of the data are used to calculate constant enthalpy contours on a Roozeboom diagram

Luo Wang

Papers

Excess molar enthalpies of methyl tert-butyl ether + n-hexane + (n-decane or n-dodecane) ternary mixtures at 298.15 K

Excess enthalpies for (di-n-propyl ether + n-alkane) at 298.15 K

Excess enthalpies of (ethanol + hexane + decane or dodecane) at the temperature 298.15 K

Excess enthalpies of {(ethanol or propan-1-ol or methyl 1,1-dimethylethyl ether) + (2,3-dimethylbutane or 2,2,4-trimethylpentane)}

Excess enthalpies of 1-propanol + n-hexane + n-decane or n-dodecane at 298.15 K