ABSTRACT

This study demonstrates the experimental solubility and tie-line data for {water + formic acid or butyric acid + solvents} ternary systems at T = 298.15 K and p = 101.32 kPa for the first time. The selected organic solvents were isoamyl acetate and methyl isoamyl ketone. Despite structural similarity, however, they belong to two different C7 chemical classifications. The phase diagrams for all of the studied ternary systems are of type-1. Solubility curves were experimentally determined using the cloud point method. The experimental tie-line data were determined by acidimetric titration, the Karl Fischer technique, and refractive index measurements. The experimental tie-line data were correlated using the UNIQUAC and NRTL models. The quality of the experimental tie-line data was determined through the Othmer Tobias and Hand correlation plots. From the experimental equilibrium data, distribution coefficients and separation factors were obtained through the regions of immiscibility.

Compounds

#	Formula	Name
1	CH2O2	formic acid
2	C4H8O2	butanoic acid
3	C7H14O2	3-methylbutyl ethanoate
4	C7H14O	5-methyl-2-hexanone
5	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	1	Refractive index (Na D-line) ; Liquid	Temperature, K; Liquid Pressure, kPa; Liquid		Liquid	Standard Abbe refractometry	1
POMD	1	Mass density, kg/m3 ; Liquid	Temperature, K; Liquid Pressure, kPa; Liquid		Liquid	Vibrating tube method	1
POMD	2	Refractive index (Na D-line) ; Liquid	Temperature, K; Liquid Pressure, kPa; Liquid		Liquid	Standard Abbe refractometry	1
POMD	2	Mass density, kg/m3 ; Liquid	Temperature, K; Liquid Pressure, kPa; Liquid		Liquid	Vibrating tube method	1
POMD	3	Refractive index (Na D-line) ; Liquid	Temperature, K; Liquid Pressure, kPa; Liquid		Liquid	Standard Abbe refractometry	1
POMD	3	Mass density, kg/m3 ; Liquid	Temperature, K; Liquid Pressure, kPa; Liquid		Liquid	Vibrating tube method	1
POMD	4	Refractive index (Na D-line) ; Liquid	Temperature, K; Liquid Pressure, kPa; Liquid		Liquid	Standard Abbe refractometry	1
POMD	4	Mass density, kg/m3 ; Liquid	Temperature, K; Liquid Pressure, kPa; Liquid		Liquid	Vibrating tube method	1
POMD	5	Refractive index (Na D-line) ; Liquid	Temperature, K; Liquid Pressure, kPa; Liquid		Liquid	Standard Abbe refractometry	1
POMD	5	Mass density, kg/m3 ; Liquid	Temperature, K; Liquid Pressure, kPa; Liquid		Liquid	Vibrating tube method	1
POMD	1 3 5	Mass fraction - 1 ; Liquid mixture 1	Mass fraction - 5; Liquid mixture 1	Pressure, kPa; Liquid mixture 1 Temperature, K; Liquid mixture 1	Liquid mixture 1 Liquid mixture 2	Titration method	28
POMD	1 3 5	Mass fraction - 5 ; Liquid mixture 2 Mass fraction - 1 ; Liquid mixture 1 Mass fraction - 5 ; Liquid mixture 1	Mass fraction - 1; Liquid mixture 2	Temperature, K; Liquid mixture 1 Pressure, kPa; Liquid mixture 1	Liquid mixture 2 Liquid mixture 1	Titration method Titration method Titration method	6
POMD	1 3 5	Refractive index (Na D-line) ; Liquid mixture 1	Mass fraction - 5; Liquid mixture 1	Temperature, K; Liquid mixture 1 Pressure, kPa; Liquid mixture 1	Liquid mixture 1 Liquid mixture 2	Standard Abbe refractometry	7
POMD	1 3 5	Refractive index (Na D-line) ; Liquid mixture 2	Mass fraction - 3; Liquid mixture 2	Temperature, K; Liquid mixture 2 Pressure, kPa; Liquid mixture 2	Liquid mixture 2 Liquid mixture 1	Standard Abbe refractometry	7
POMD	1 4 5	Mass fraction - 1 ; Liquid mixture 1	Mass fraction - 5; Liquid mixture 1	Pressure, kPa; Liquid mixture 1 Temperature, K; Liquid mixture 1	Liquid mixture 1 Liquid mixture 2	Titration method	28
POMD	1 4 5	Mass fraction - 5 ; Liquid mixture 2 Mass fraction - 1 ; Liquid mixture 1 Mass fraction - 5 ; Liquid mixture 1	Mass fraction - 1; Liquid mixture 2	Temperature, K; Liquid mixture 1 Pressure, kPa; Liquid mixture 1	Liquid mixture 2 Liquid mixture 1	Titration method Titration method Titration method	6
POMD	1 4 5	Refractive index (Na D-line) ; Liquid mixture 1	Mass fraction - 5; Liquid mixture 1	Temperature, K; Liquid mixture 1 Pressure, kPa; Liquid mixture 1	Liquid mixture 1 Liquid mixture 2	Standard Abbe refractometry	7
POMD	1 4 5	Refractive index (Na D-line) ; Liquid mixture 2	Mass fraction - 4; Liquid mixture 2	Temperature, K; Liquid mixture 2 Pressure, kPa; Liquid mixture 2	Liquid mixture 2 Liquid mixture 1	Standard Abbe refractometry	7
POMD	2 3 5	Mass fraction - 2 ; Liquid mixture 1	Mass fraction - 5; Liquid mixture 1	Pressure, kPa; Liquid mixture 1 Temperature, K; Liquid mixture 1	Liquid mixture 1 Liquid mixture 2	Titration method	28
POMD	2 3 5	Mass fraction - 5 ; Liquid mixture 2 Mass fraction - 2 ; Liquid mixture 1 Mass fraction - 5 ; Liquid mixture 1	Mass fraction - 2; Liquid mixture 2	Temperature, K; Liquid mixture 1 Pressure, kPa; Liquid mixture 1	Liquid mixture 2 Liquid mixture 1	Titration method Titration method Titration method	6
POMD	2 3 5	Refractive index (Na D-line) ; Liquid mixture 1	Mass fraction - 5; Liquid mixture 1	Temperature, K; Liquid mixture 1 Pressure, kPa; Liquid mixture 1	Liquid mixture 1 Liquid mixture 2	Standard Abbe refractometry	7
POMD	2 3 5	Refractive index (Na D-line) ; Liquid mixture 2	Mass fraction - 3; Liquid mixture 2	Temperature, K; Liquid mixture 2 Pressure, kPa; Liquid mixture 2	Liquid mixture 2 Liquid mixture 1	Standard Abbe refractometry	7
POMD	2 4 5	Mass fraction - 2 ; Liquid mixture 1	Mass fraction - 5; Liquid mixture 1	Pressure, kPa; Liquid mixture 1 Temperature, K; Liquid mixture 1	Liquid mixture 1 Liquid mixture 2	Titration method	28
POMD	2 4 5	Mass fraction - 5 ; Liquid mixture 2 Mass fraction - 2 ; Liquid mixture 1 Mass fraction - 5 ; Liquid mixture 1	Mass fraction - 2; Liquid mixture 2	Temperature, K; Liquid mixture 1 Pressure, kPa; Liquid mixture 1	Liquid mixture 2 Liquid mixture 1	Titration method Titration method Titration method	6
POMD	2 4 5	Refractive index (Na D-line) ; Liquid mixture 1	Mass fraction - 5; Liquid mixture 1	Temperature, K; Liquid mixture 1 Pressure, kPa; Liquid mixture 1	Liquid mixture 1 Liquid mixture 2	Standard Abbe refractometry	7
POMD	2 4 5	Refractive index (Na D-line) ; Liquid mixture 2	Mass fraction - 4; Liquid mixture 2	Temperature, K; Liquid mixture 2 Pressure, kPa; Liquid mixture 2	Liquid mixture 2 Liquid mixture 1	Standard Abbe refractometry	7

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

Experimental and Correlational Study of Phase Equilibria in Aqueous Solutions of Formic and Butyric Acids with Isoamyl Acetate and Methyl Isoamyl Ketone at T = 298.15 K

Gilani, H. G.[Hossein Ghanadzadeh], Gilani, A. G.[Ali Ghanadzadeh], Saadat, S. L. S.

ABSTRACT