Isobaric vapor-liquid equilibrium (VLE) data for the isopropanol (1) + water (2) system containing ionic liquid (IL) l-ethyl-3-methylimidazolium tetrafluoroborate ([EMIM]+[BF4]-) at atmospheric pressure (101.32 kPa) were measured with a modified Othmer still. The results showed that the VLE of isopropanol + water in the presence of different contents of IL was obviously different from that of the IL-free system. The IL studied showed a salting-out effect, which gave rise to a change of the relative volatility of isopropanol and even to the elimination of the azeotropic point. It was found that the salting-out effect followed the order of X3' = 0.30 greater than X3' = 0.20 greater than X3' = 0.10, which was probably attributed to the interaction between the ions resulting from the dissociation of IL and water.
Compounds
#
Formula
Name
1
C3H8O
propan-2-ol
2
H2O
water
3
C6H11BF4N2
1-ethyl-3-methylimidazolium tetrafluoroborate
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.