ABSTRACT

The solubility of vanillic acid in eight pure solvents, including ethanol, 1-propanol, 2-propanol, n-butanol, isobutanol, acetone, methyl acetate, water, and binary mixtures of water + ethanol have been measured at (293.15 to 323.15) K and atmospheric pressure by using a gravimetric method. The experimental solubility in the pure solvents was correlated by the modified Apelblat equation, van t Hoff equation, h equation, nonrandom two-liquid (NRTL) equation, universal quasichemical (UNIQUAC) equation, and Wilson equation. The solubility in the binary mixed solvents was correlated by the modified Apelblat equation and the Jouyban Acree equation. The correlated values based on all the selected equations showed good agreement with the experimental values, and the correlated data of the modified Apelblat equation show the best agreement with the experimental data.

Compounds

#	Formula	Name
1	C8H8O4	4-hydroxy-3-methoxybenzoic acid
2	C2H6O	ethanol
3	C3H8O	propan-1-ol
4	C3H8O	propan-2-ol
5	C4H10O	butan-1-ol
6	C4H10O	2-methyl-1-propanol
7	C3H6O	acetone
8	C3H6O2	methyl ethanoate
9	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	Normal melting temperature, K ; Crystal			Crystal Liquid Air at 1 atmosphere	DTA	1
POMD	1	Molar enthalpy of transition or fusion, kJ/mol ; Crystal			Crystal Liquid Air at 1 atmosphere	DSC	1
POMD	2 1	Mole fraction - 1 ; Liquid	Temperature, K; Liquid	Pressure, kPa; Liquid	Liquid Crystal - 1	gravimetric	7
POMD	3 1	Mole fraction - 1 ; Liquid	Temperature, K; Liquid	Pressure, kPa; Liquid	Liquid Crystal - 1	gravimetric	7
POMD	4 1	Mole fraction - 1 ; Liquid	Temperature, K; Liquid	Pressure, kPa; Liquid	Liquid Crystal - 1	gravimetric	7
POMD	5 1	Mole fraction - 1 ; Liquid	Temperature, K; Liquid	Pressure, kPa; Liquid	Liquid Crystal - 1	gravimetric	7
POMD	6 1	Mole fraction - 1 ; Liquid	Temperature, K; Liquid	Pressure, kPa; Liquid	Liquid Crystal - 1	gravimetric	7
POMD	7 1	Mole fraction - 1 ; Liquid	Temperature, K; Liquid	Pressure, kPa; Liquid	Liquid Crystal - 1	gravimetric	7
POMD	8 1	Mole fraction - 1 ; Liquid	Temperature, K; Liquid	Pressure, kPa; Liquid	Liquid Crystal - 1	gravimetric	7
POMD	1 9	Mole fraction - 1 ; Liquid	Temperature, K; Liquid	Pressure, kPa; Liquid	Liquid Crystal - 1	gravimetric	7
POMD	2 1 9	Mole fraction - 1 ; Liquid	Solvent: Mass fraction - 9; Liquid Temperature, K; Liquid	Pressure, kPa; Liquid	Liquid Crystal - 1	gravimetric	63

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

Measurement and Correlation of the Solubility of Vanillic Acid in Eight Pure and Water + Ethanol Mixed Solvents at Temperatures from (293.15 to 323.15) K

Zhang, Y.[Yuqiang], Guo, F.[Fan], Cui, Q.[Qiao], Lu, M.[Muyao], Song, X.[Xiaolin], Tang, H.[Hongjian], Li, Q.[Qunsheng]

ABSTRACT