For an ethylene glycol n-butyl ether (1) + water (2) system at 310 K with 70% by mass water, determine if the system is one stable liquid phase or two stable liquid phases at equilibrium. If the latter, provide the mass fraction of the co-existing phases.

figure 13-3 

Transcribed Image Text:

Temperature (K) 340 335 330 325 320 315 310 305 300 0 0.2 0.4 0.6 0.8 Mole fraction propylene glycol n-propyl ether Based on S. Christensen et al., J. Chem. Eng. Data, 50, 869 (2005).