ABSTRACT

Isobaric vapor-liquid equilibria for water + acetic acid + potassium acetate at different salt concentrations as well as for solvent + potassium acetate binary mixtures have been obtained at 100 kPa. Potassium acetate is more effective in the salting-out effect (on water) than lithium and sodium acetates. The eNRTL-CT model, which is a combination of electrolyte nonrandom two-liquid and chemical theory models, has been used to fit the experimental data. The binary parameters of the model have been obtained from the experimental binary vapor-liquid equilibria which have been used to suitably reproduce the vapor-liquid equilibria (VLE) for water + acetic acid + potassium acetate ternary system.

Compounds

#	Formula	Name
1	H2O	water
2	C2H4O2	acetic acid
3	C2H3KO2	potassium ethanoate

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	3 1	Boiling temperature at pressure P, K ; Liquid	Mole fraction - 3; Liquid	Pressure, kPa; Liquid	Liquid Gas	EBULLIO:UFactor:8	23
POMD	2 3	Boiling temperature at pressure P, K ; Liquid	Mole fraction - 3; Liquid	Pressure, kPa; Liquid	Liquid Gas	EBULLIO:UFactor:8	33
POMD	2 3 1	Boiling temperature at pressure P, K ; Liquid	Mole fraction - 3; Liquid Solvent: Mole fraction - 1; Liquid	Pressure, kPa; Liquid	Liquid Gas	EBULLIO:UFactor:8	96
POMD	2 3 1	Mole fraction - 1 ; Gas	Mole fraction - 3; Liquid Solvent: Mole fraction - 1; Liquid	Pressure, kPa; Liquid	Gas Liquid	CHROM:UFactor:2	96

Thermodynamics Research Center / ThermoML | Journal of Chemical and Engineering Data

Isobaric Vapor-Liquid Equilibria for Water + Acetic Acid + Potassium Acetate

Vercher, E.[Ernesto], Orchilles, A. V., Vazquez, M. I.[M. Isabel], Martinez-Andreu, A.[Antoni]

ABSTRACT