Thermophysical Properties of Glycols and Glymes
authors Carvalho, PJ; Fonseca, CHG; Moita, MLCJ; Santos, AFS; Coutinho, JAP
nationality International
journal JOURNAL OF CHEMICAL AND ENGINEERING DATA
keywords EXCESS MOLAR VOLUMES; AQUEOUS BINARY-MIXTURES; PLUS ETHYLENE-GLYCOL; DIMETHYL ETHER-WATER; TERT-BUTYL ETHER; DIETHYLENE GLYCOL; 298.15 K; REFRACTIVE-INDEXES; TETRAETHYLENE GLYCOL; TRIETHYLENE GLYCOL
abstract Experimental data for density, viscosity, refractive index and sound speed of 11 glycols and glymes were measured in the temperature range between (283.15 and 373.15) K and at atmospheric pressure. The compounds evaluated include ethylene glycol (EG), diethylene glycol (DEG), triethylene glycol (TriEG), tetraethylene glycol (TeEG), ethylene glycol ethyl ether (EGEE), diethylene glycol methyl ether (DEGME), diethylene glycol dimethyl ether (DEGDME), diethylene glycol ethyl ether (DEGEE), diethylene glycol diethyl ether (DEGDEE), triethylene glycol dimethyl ether (TriEGDME), and tetraethylene glycol dimethyl ether (TeEGDME). Additionally, derivative properties, such isobaric thermal expansion coefficient and isentropic compressibilities were also estimated and discussed. The compounds evaluated were selected to evaluate the impact of molecular structure changes on their thermophysical properties. Effects like the increase in the number of ethoxy groups, shown to lead to an increase of the density, molar volume, viscosity, and refractive index, or the loss of the hydroxyl groups through the substitution of the hydroxyl groups hydrogen by a methyl or ethyl group, shown to lead to a significant decrease on the density, viscosity, and sound speed, are evaluated and discussed.
publisher AMER CHEMICAL SOC
issn 0021-9568
year published 2015
volume 60
issue 12
beginning page 3721
ending page 3737
digital object identifier (doi) 10.1021/acs.jced.5b00662
web of science category Thermodynamics; Chemistry, Multidisciplinary; Engineering, Chemical
subject category Thermodynamics; Chemistry; Engineering
unique article identifier WOS:000366339800028
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journal impact factor 2.369
5 year journal impact factor 2.503
category normalized journal impact factor percentile 53.135
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