ABSTRACT

A study to attain the solubility and liquid-liquid equilibrium (LLE) data for the ternary mixtures of water + alcohol + iodoethane (where alcohol = methanol, or ethanol, or 1-propanol) was carried out at temperature 298.15 K and pressure of 0.1 MPa. The consistency of the binodal and phase diagram data were well ascertained by Hand and Othmer-Tobias empirical equations. The NRTL and UNIQUAC thermodynamic models were shown to yield accurate values for the LLE of the three systems. Plait point, distribution coefficient, solvent selectivity, and binary interaction parameters are reported for each ternary system. The selectivity of water for methanol in the ternary studied system is very high. The removal of methanol from the azeotropic binary system of methanol + iodoethane by means of water is potentially effective to yield pure iodoethane at ambient temperature. The immiscibility region of the system decreases significantly with increasing of the alcohol molecular chain.

Compounds

#	Formula	Name
1	H2O	water
2	CH4O	methanol
3	C2H6O	ethanol
4	C3H8O	propan-1-ol
5	C3H8O	propan-2-ol
6	C2H5I	iodoethane

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	1	Mass density, kg/m3 ; Liquid	Temperature, K; Liquid Pressure, kPa; Liquid		Liquid	Vibrating tube method	1
POMD	2	Mass density, kg/m3 ; Liquid	Temperature, K; Liquid Pressure, kPa; Liquid		Liquid	Vibrating tube method	1
POMD	3	Mass density, kg/m3 ; Liquid	Temperature, K; Liquid Pressure, kPa; Liquid		Liquid	Vibrating tube method	1
POMD	4	Mass density, kg/m3 ; Liquid	Temperature, K; Liquid Pressure, kPa; Liquid		Liquid	Vibrating tube method	1
POMD	5	Mass density, kg/m3 ; Liquid	Temperature, K; Liquid Pressure, kPa; Liquid		Liquid	Vibrating tube method	1
POMD	6	Mass density, kg/m3 ; Liquid	Temperature, K; Liquid Pressure, kPa; Liquid		Liquid	Vibrating tube method	1
POMD	2 6 1	Mole fraction - 2 ; Liquid mixture 1	Mole fraction - 6; Liquid mixture 1	Pressure, kPa; Liquid mixture 1 Temperature, K; Liquid mixture 1	Liquid mixture 1 Liquid mixture 2	Titration method	20
POMD	2 6 1	Mole fraction - 2 ; Liquid mixture 1 Mole fraction - 1 ; Liquid mixture 2 Mole fraction - 2 ; Liquid mixture 2	Mole fraction - 1; Liquid mixture 1	Temperature, K; Liquid mixture 1 Pressure, kPa; Liquid mixture 1	Liquid mixture 1 Liquid mixture 2	Chromatography Chromatography Chromatography	8
POMD	3 6 1	Mole fraction - 3 ; Liquid mixture 1	Mole fraction - 6; Liquid mixture 1	Pressure, kPa; Liquid mixture 1 Temperature, K; Liquid mixture 1	Liquid mixture 1 Liquid mixture 2	Titration method	20
POMD	3 6 1	Mole fraction - 3 ; Liquid mixture 1 Mole fraction - 1 ; Liquid mixture 2 Mole fraction - 3 ; Liquid mixture 2	Mole fraction - 1; Liquid mixture 1	Temperature, K; Liquid mixture 1 Pressure, kPa; Liquid mixture 1	Liquid mixture 1 Liquid mixture 2	Chromatography Chromatography Chromatography	8
POMD	4 6 1	Mole fraction - 4 ; Liquid mixture 1	Mole fraction - 6; Liquid mixture 1	Pressure, kPa; Liquid mixture 1 Temperature, K; Liquid mixture 1	Liquid mixture 1 Liquid mixture 2	Titration method	18
POMD	4 6 1	Mole fraction - 4 ; Liquid mixture 1 Mole fraction - 4 ; Liquid mixture 2 Mole fraction - 1 ; Liquid mixture 2	Mole fraction - 1; Liquid mixture 1	Temperature, K; Liquid mixture 1 Pressure, kPa; Liquid mixture 1	Liquid mixture 1 Liquid mixture 2	Chromatography Chromatography Chromatography	9

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

Solubility and Liquid-Liquid Equilibrium of Aqueous Systems of Iodoethane with Methanol, Ethanol, or 1-Propanol at Temperature 298.15 K and Pressure 101.2 kPa

Kerboub, W.[Wahiba], Atik, Z.[Zadjia]

ABSTRACT