ABSTRACT

The solubilities of (sodium and copper(II)) sulfate + ethanol + water mixtures have been determined at (278.15, 288.15, and 298.15) K and for the potassium sulfate + ethanol + water system at the same temperatures and also at (308.15 and 318.15) K. The equilibrium composition for different points has been calculated by means of refraction index and density measurements. An empirical correlation for the solubilities of the ternary mixtures has been used to correlate experimental values as a function of the solvent composition. Data fitting shows a good agreement with experimental values.

Compounds

#	Formula	Name
1	H2O	water
2	CuO4S	copper sulfate
3	Na2O4S	sodium sulfate
4	K2O4S	potassium sulfate
5	C2H6O	ethanol

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 2	Molality, mol/kg - 2 ; Liquid	Temperature, K; Liquid	Pressure, kPa; Liquid	Liquid Crystal - 2	density and refractive index values from the literature	3
POMD	1 2	Refractive index (Na D-line) ; Liquid	Temperature, K; Liquid	Pressure, kPa; Liquid	Liquid Crystal - 2	Standard Abbe refractometry	3
POMD	1 2	Mass density, kg/m3 ; Liquid	Temperature, K; Liquid	Pressure, kPa; Liquid	Liquid Crystal - 2	Vibrating tube method	3
POMD	1 3	Molality, mol/kg - 3 ; Liquid	Temperature, K; Liquid	Pressure, kPa; Liquid	Liquid Crystal of intercomponent compound 1	density and refractive index values from the literature	3
POMD	1 3	Refractive index (Na D-line) ; Liquid	Temperature, K; Liquid	Pressure, kPa; Liquid	Liquid Crystal - 3	Standard Abbe refractometry	3
POMD	1 3	Mass density, kg/m3 ; Liquid	Temperature, K; Liquid	Pressure, kPa; Liquid	Liquid Crystal - 3	Vibrating tube method	3
POMD	1 4	Molality, mol/kg - 4 ; Liquid	Temperature, K; Liquid	Pressure, kPa; Liquid	Liquid Crystal - 4	density and refractive index values from the literature	5
POMD	1 4	Refractive index (Na D-line) ; Liquid	Temperature, K; Liquid	Pressure, kPa; Liquid	Liquid Crystal - 4	Standard Abbe refractometry	5
POMD	5 1 2	Molality, mol/kg - 2 ; Liquid	Temperature, K; Liquid Solvent: Mass fraction - 5; Liquid	Pressure, kPa; Liquid	Liquid Crystal - 2	density and refractive index values from the literature	27
POMD	5 1 2	Refractive index (Na D-line) ; Liquid	Temperature, K; Liquid Solvent: Mass fraction - 5; Liquid	Pressure, kPa; Liquid	Liquid Crystal - 2	Standard Abbe refractometry	27
POMD	5 1 2	Mass density, kg/m3 ; Liquid	Temperature, K; Liquid Solvent: Mass fraction - 5; Liquid	Pressure, kPa; Liquid	Liquid Crystal - 2	Vibrating tube method	27
POMD	5 1 3	Molality, mol/kg - 3 ; Liquid	Temperature, K; Liquid Solvent: Mass fraction - 5; Liquid	Pressure, kPa; Liquid	Liquid Crystal - 3	density and refractive index values from the literature	38
POMD	5 1 3	Refractive index (Na D-line) ; Liquid	Temperature, K; Liquid Solvent: Mole fraction - 5; Liquid	Pressure, kPa; Liquid	Liquid Crystal - 3	Standard Abbe refractometry	38
POMD	5 1 3	Mass density, kg/m3 ; Liquid	Temperature, K; Liquid Solvent: Mass fraction - 5; Liquid	Pressure, kPa; Liquid	Liquid Crystal - 3	Vibrating tube method	38
POMD	5 1 4	Molality, mol/kg - 4 ; Liquid	Temperature, K; Liquid Solvent: Mass fraction - 5; Liquid	Pressure, kPa; Liquid	Liquid Crystal - 4	density and refractive index values from the literature	56
POMD	5 1 4	Refractive index (Na D-line) ; Liquid	Temperature, K; Liquid Solvent: Mass fraction - 5; Liquid	Pressure, kPa; Liquid	Liquid Crystal - 4	Standard Abbe refractometry	56

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

Solubilities of Sodium, Potassium, and Copper(II) Sulfates in Ethanol-Water Solutions

Urrejola, S.[Santiago], Sanchez, A.[Angel], Hervello, M. F.[Martin F.]

ABSTRACT