ABSTRACT

Solubility, critical states and liquid liquid equilibrium (LLE) data for the quaternary system acetic acid ethanol ethyl acetate water and for the ternary subsystems acetic acid ethyl acetate water and ethanol ethyl acetate water were studied at 303.15 K and 313.15 K and atmospheric pressure. Binodal surfaces, binodal curves, tie-lines and compositions of critical points were determined. In order to construct the binodal surfaces and critical curves of the quaternary system, five quaternary sectional planes with several different ratios of concentration of acetic acid to ethanol were studied. Experimental LLE data were compared with the values calculated by UNIFAC and NRTL models, and it was found that the experimental and calculated data are in good agreement.

Compounds

#	Formula	Name
1	C2H4O2	acetic acid
2	C2H6O	ethanol
3	C4H8O2	ethyl acetate
4	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 3 4	Mole fraction - 4 ; Liquid	Temperature, K; Liquid Mole fraction - 2; Liquid	Pressure, kPa; Liquid	Liquid Liquid - 4	Titration method	33
POMD	2 3 4	Mole fraction - 3 ; Liquid mixture 1 Mole fraction - 2 ; Liquid mixture 2 Mole fraction - 3 ; Liquid mixture 2	Temperature, K; Liquid mixture 2 Mole fraction - 2; Liquid mixture 1	Pressure, kPa; Liquid mixture 2	Liquid mixture 1 Liquid mixture 2	Chromatography Chromatography Chromatography	15
POMD	1 3 4	Mole fraction - 4 ; Liquid	Temperature, K; Liquid Mole fraction - 1; Liquid	Pressure, kPa; Liquid	Liquid Liquid - 4	Titration method	30
POMD	1 3 4	Mole fraction - 3 ; Liquid mixture 1 Mole fraction - 1 ; Liquid mixture 2 Mole fraction - 3 ; Liquid mixture 2	Temperature, K; Liquid mixture 2 Mole fraction - 1; Liquid mixture 1	Pressure, kPa; Liquid mixture 2	Liquid mixture 1 Liquid mixture 2	Chromatography Chromatography Chromatography	14

Thermodynamics Research Center / ThermoML | Fluid Phase Equilibria

Solubility, liquid-liquid equilibrium and critical states for the quaternary system acetic acid-ethanol-ethyl acetate-water at 303.15 K and 313.15 K

Toikka, M.[Maria], Samarov, A. A.[Artemiy A.], Trofimova, M.[Maya], Golikova, A.[Alexandra], Tsvetov, N.[Nikita]

ABSTRACT