The densities of the deep eutectic solvent (DES) based on choline chloride and ethylene glycol (Ethaline) and its mixtures with water were measured from 298.15 K to 323.15 K over an extended pressure range (0.1 to 50) MPa. Other important properties such as isothermal compressibility, isobaric expansivity were derived for the pure system using the experimental data. The high-pressure densities were accurately correlated to the temperature, pressure and composition using a Tait-type equation. For the binary mixtures of Ethaline (1) + H2O (2), the excess molar volumes were investigated and represented as a function of temperature and composition by a Redlich-Kister-type equation. Results indicate that the new data presented are of sufficient accuracy and the correlations proposed in this work can be used in accurately predicting the densities of the studied systems as functions of temperature, pressure and composition.
Compounds
#
Formula
Name
1
C2H6O2
1,2-ethanediol
2
C5H14ClNO
choline chloride
3
H2O
water
Datasets
The table above is generated from the ThermoML associated json file (link above).
POMD and RXND refer to PureOrMixture and Reaction Datasets. The compound numbers are included in properties, variables, and phases, if specificied;
the numbers refer to the table of compounds on the left.