ABSTRACT

Isobaric vapor -iquid equilibrium (VLE) data for the binary system monochloroacetic acid + dichloroacetic acid have been measured at 5, 7.5, and 10 kPa. The VLE data measured in this work is thermodynamically consistent according to the Herington area method. The non-ideal behavior in the vapor phase was correlated using the Hayden O'Connell model. Wilson, NRTL, and UNIQUAC were used to account for the liquid phase non-idealities. All activity coefficient models were able to describe the experimental VLE data very well. Wilson and UNIQUAC described the VLE data slightly better than NRTL. The correlated equilibrium temperatures and vapor phase compositions were in all cases in good agreement with the experimental data.

Compounds

#	Formula	Name
1	C2H3ClO2	chloroethanoic acid
2	C2H2Cl2O2	2,2-dichloroacetic acid

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	Phase	Method	#Points
POMD	1	Vapor or sublimation pressure, kPa ; Liquid	Temperature, K; Liquid	Liquid Gas	Ebulliometric method (Recirculating still)	16
POMD	2	Vapor or sublimation pressure, kPa ; Liquid	Temperature, K; Liquid	Liquid Gas	Ebulliometric method (Recirculating still)	16
POMD	1 2	Boiling temperature at pressure P, K ; Liquid	Mole fraction - 1; Liquid Pressure, kPa; Liquid	Liquid Gas	Ebulliometric method (Recirculating still)	33
POMD	1 2	Mole fraction - 1 ; Gas	Mole fraction - 1; Liquid Pressure, kPa; Liquid	Gas Liquid	Chromatography	33

Thermodynamics Research Center / ThermoML | Fluid Phase Equilibria

Isobaric low pressure vapor-liquid equilibrium data for the binary system monochloroacetic acid + dichloroacetic acid

Londono, A.[Alex], Jongmans, M. T. G.[Mark T.G.], Schuur, B.[Boelo], Haan, A. B. d.[Andre B. de]

ABSTRACT