The speed of ultrasound measurements in 1-ethyl-3-methylimidazolium bis(trifluoromethylsulfonyl)imide, [EMIm][NTf2], were performed in the temperature range from (288 to 318) K and at pressures from (15 to 101) MPa. The speeds of ultrasound, densities, and isobaric heat capacities have been determined at ambient pressure for temperatures from (287 to 323) K, (278.15 to 363.15) K, and (293.15 to 323.15) K, respectively. The pressure dependence of densities and adiabatic compressibilities were calculated using the speeds of ultrasound at high pressure as well as densities and heat capacities at ambient pressure. The experimental densities reported in the literature are in a good agreement with the densities calculated in this work.
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.
Type
Compound-#
Property
Variable
Constraint
Phase
Method
#Points
POMD
1
Speed of sound, m/s ; Liquid
Temperature, K; Liquid
Pressure, kPa; Liquid
Liquid
Pulse-echo method
14
POMD
1
Mass density, kg/m3 ; Liquid
Temperature, K; Liquid
Pressure, kPa; Liquid
Liquid
Vibrating tube method
8
POMD
1
Molar heat capacity at constant pressure, J/K/mol ; Liquid