Vapor pressures, enthalpies of sublimation, enthalpies of solution at infinite dilution and densities of the aqueous solutions of crystalline 5-trifluoromethyluracil were determined. Vapor pressures and enthalpies of sublimation were measured by the Knudsen effusion method. The heats of solution in water were determined at 298.15 K over the range of concentrations of 0.495 to 0.948 mmol.kg-1 by using an isoperibol solution calorimeter. The molar enthalpy of hydration was calculated by subtracting the estimated molar enthalpy of sublimation and the molar enthalpy of solution. Densities of the solutions were measured with an Anton Paar DMA 60/602 digital densimeter and the partial volume was estimated. The purity of the substance was determined using a DSC 910 Du Pont differential scanning calorimeter with a Thermal Analyzer 1090.
Compounds
#
Formula
Name
1
C5H3F3N2O2
5-(trifluoromethyl)uracil
2
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.