ABSTRACT

Data on corresponding solid-liquid equilibrium of itaconic acid in different organic solvents are essential for industrial design and further theoretical studies. In this study, the solubility of itaconic acid was measured in methanol, ethanol, 1-propanol, acetonitrile, 2-propanol, ethyl acetate, and acetone with the temperature range of 283.15 to 328.15 K by the analytical stirred-flask method under atmospheric pressure. The experiment results showed that the solubility of itaconic acid was highest in methanol and followed by 2-propanol, ethanol and 1-propanol. For the temperature range investigated, the solubilities of itaconic acid in the solvents increased with increasing temperature. Results of these measurements were well-correlated with the modified Apelblat equation and the Buchowski-Ksiazaczak lambda-h equation. The calculated solubilities showed good agreement with the xperimental data. The modified Apelblat equation was found to regress the solubility data much better than the Buchowski-Ksiazaczak lambda-h equation.

Compounds

#	Formula	Name
1	CH4O	methanol
2	C2H6O	ethanol
3	C3H8O	propan-1-ol
4	C2H3N	acetonitrile
5	C3H8O	propan-2-ol
6	C4H8O2	ethyl acetate
7	C3H6O	acetone
8	ClNa	sodium chloride
9	H2O	water
10	C5H6O4	methylenebutanedioic 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	Constraint	Phase	Method	#Points
POMD	10	Normal melting temperature, K ; Crystal			Crystal Liquid Air at 1 atmosphere	DTA	1
POMD	8 9	Mole fraction - 8 ; Liquid	Temperature, K; Liquid	Pressure, kPa; Liquid	Liquid Crystal - 8	residual mass after drying	4
POMD	1 10	Mole fraction - 10 ; Liquid	Temperature, K; Liquid	Pressure, kPa; Liquid	Liquid Crystal - 10	residual mass after drying	10
POMD	2 10	Mole fraction - 10 ; Liquid	Temperature, K; Liquid	Pressure, kPa; Liquid	Liquid Crystal - 10	residual mass after drying	10
POMD	3 10	Mole fraction - 10 ; Liquid	Temperature, K; Liquid	Pressure, kPa; Liquid	Liquid Crystal - 10	residual mass after drying	10
POMD	4 10	Mole fraction - 10 ; Liquid	Temperature, K; Liquid	Pressure, kPa; Liquid	Liquid Crystal - 10	residual mass after drying	10
POMD	5 10	Mole fraction - 10 ; Liquid	Temperature, K; Liquid	Pressure, kPa; Liquid	Liquid Crystal - 10	residual mass after drying	10
POMD	10 6	Mole fraction - 10 ; Liquid	Temperature, K; Liquid	Pressure, kPa; Liquid	Liquid Crystal - 10	residual mass after drying	10
POMD	7 10	Mole fraction - 10 ; Liquid	Temperature, K; Liquid	Pressure, kPa; Liquid	Liquid Crystal - 10	residual mass after drying	10

Thermodynamics Research Center / ThermoML | Fluid Phase Equilibria

Solubility of itaconic acid in different organic solvents: Experimental measurement and thermodynamic modeling

Yang, W.[Wenge], Hu, Y.[Yonghong], Chen, Z.[Zhaoguo], Jiang, X.[Xinmin], Wang, J.[Jikui], Wang, R.[Ruirong]

ABSTRACT