Figure S2. (a) The uncertainties in Tc of PZ (gray area) resulting from the uncertainties in its saturation vapor pressure p0 . The dash line represents the results using p0 values recommended by Ge et al.3 The lower and upper boundaries of the gray area were derived by increasing and decreasing the vapor pressure by a factor of 3.56, respectively. (b) The differences in Tcfor MA, DMA, EA and DEA when using Henry’s law constantKH (hallow markers) and the extrapolated vapor pressure p0 at 298 K (solid markers). The extrapolated vapor pressures were based on their Antoine Equations at low temperatures.5 (c) The uncertainties inTc of DMA (gray area) resulting from the uncertainties in its Henry’s law constant KH at 298 K. The dash line represents the results using theKH at 298 K value recommended by Linstrom and Mallard.5 The lower and upper boundaries of the gray area were derived by using the minimum and maximumKH at 298 K values (with clearly stated methods of determination) in Sander,6 respectively. (d) The comparison in Tc values of PZ using different activity estimation methods. The black solid line was calculated with the UNIFAC method and the red dash line was based on Raoult’s law.