The densities for binary mixtures of dichloromethane with aniline, or nitrobenzene, respectively, including those of pure liquids, were measured over the entire composition range at T = (288.15, 293.15, 298.15, and 303.15) K and atmospheric pressure using a vibrating-tube densimeter. From the experimental results, the excess molar volumes, VE m, partial molar volumes, Vi , the apparent molar volume, V/i, and the partial molar excess volumes at infinite dilution, oVEi P1, were calculated over whole composition range. Negative values of VE m for (dichloromethane + aniline) attributed to the formation of the charge transfer complex, while for (dichloromethane + nitrobenzene) system, the free volume effect played a dominant role. The extent of negative deviations in VE m values follows the order: nitrobenzene greater than aniline. The Prigogine Flory Patterson (PFP) theory and its applicability in predicting VE m at T = 298.15 K were tested. There is a good agreement in general between the experimental VE m values and those predicted by PFP theory.
Compounds
#
Formula
Name
1
CH2Cl2
dichloromethane
2
C6H7N
aniline
3
C6H5NO2
nitrobenzene
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.