ABSTRACT

Isobaric vapor-liquid-liquid equilibria (VLLE) were measured for the ternary system isopropenyl acetate + water + acetic acid at 101 kPa. The apparatus for determination of the VLLE was an all-glass dynamic recirculating still. The experimental data demonstrated the existence of a binary heterogeneous azeotrope at 353.05 K with a composition of 0.5269, 0.4731 mole fractions of isopropenyl acetate and water. The prediction of VLLE used the modified UNIQUAC model which was based on the experimental data includes binary VLE of isopropenyl acetate + acetic acid, binary VLE of water + acetic acid, binary LLE of isopropenyl acetate + water and a single tie-line of ternary LLE of isopropenyl acetate + water + acetic acid. Comparison of the experimental data and the calculated results was made, which shows a satisfactory fit of the thermodynamic model.

Compounds

#	Formula	Name
1	C5H8O2	1-methylvinyl ethanoate
2	C2H4O2	acetic acid
3	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.
Type	Compound-#	Property	Variable	Constraint	Phase	Method	#Points
POMD	2 1 3	Mole fraction - 1 ; Liquid mixture 1 Mole fraction - 1 ; Liquid mixture 2 Mole fraction - 1 ; Gas Mole fraction - 3 ; Liquid mixture 1 Mole fraction - 3 ; Liquid mixture 2 Mole fraction - 3 ; Gas	Temperature, K; Liquid mixture 2	Pressure, kPa; Liquid mixture 2	Liquid mixture 1 Liquid mixture 2 Gas	Chromatography Chromatography Chromatography Chromatography Chromatography Chromatography	14

Thermodynamics Research Center / ThermoML | Fluid Phase Equilibria

Isobaric vapor-liquid liquid equilibrium for isopropenyl acetate + water + acetic acid at 101 kPa

Wang, Z.[Zihan], Wu, B.[Bin], Zhu, J.[Jiawen], Chen, K.[Kui], Wang, W.[Wenqiang]

ABSTRACT