The densities, viscosities, and electrical conductivities of N-(2-hydroxyethyl) pyridinium bis(trifluoromethanesulfonyl)amide ([Py2OH][Tf2N]) have been measured over the temperaturerange T = 273.15 to 363.15 K at atmospheric pressure. The pressure-volume-temperature-composition relations in the CO2+ [Py2OH][Tf2N] system have been obtained under the pressure condition up to 5 MPa at T = 298.15, 313.15, and 333.15 K. The densities and transport properties were well reproduced with a second order polynomial and Vogel-Fulcher-Tamman equations, respectively. The Walden plot (double logarithm graph of molar conductivity vs reciprocal viscosity) gives the straight line. [Py2OH][Tf2N] has higher densities and poor transport properties compared to an analog without the hydroxyl group, N-butylpyridinium bis(trifluoromethanesulfonyl)amide. The CO2 solubilities in [Py2OH][Tf2N] show typical pressure dependencies in both mole fraction and molarity scales as a physical absorbent. The molar volume in the liquid [Py2OH][Tf2N] phase decreases by the dissolution of CO2. The volume of ionic liquid phase expands with an increase of CO2. As a result, the saturated liquid density slightly decreases over the present conditions investigated.
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.