ABSTRACT

In our study the solubilities of crotonic acid in methanol, ethanol, 2-propanol, 1-butanol, acetic acid,N,N-dimethylformamide, ethyl acetate and acetonitrile were experimentally determined over the tem-perature range of (278.15 333.15) K at around 5 K intervals by employing an analytical stirred-flaskmethod. The experimental solubility data were well correlated with the modified Apelblat equation,in different kinds of solvents the values of the sum of MPD were 6.3. The thermodynamic functionswere evaluated by two methods and the results were the same. The dissolving process was endother-mic, entropy-driving and non-spontaneous. It was necessary to use the experiment data and correlationmodels in the reaction and purification of crotonic acid.

Compounds

#	Formula	Name
1	C4H6O2	2-butenoic acid
2	CH4O	methanol
3	C2H6O	ethanol
4	C3H8O	propan-2-ol
5	C4H10O	butan-1-ol
6	C2H3N	acetonitrile
7	C4H8O2	ethyl acetate
8	C3H7NO	dimethylformamide
9	C2H4O2	acetic 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	1	Normal melting temperature, K ; Crystal			Crystal Liquid Air at 1 atmosphere	VISOBS	1
POMD	2 1	Mole fraction - 1 ; Liquid	Temperature, K; Liquid	Pressure, kPa; Liquid	Liquid Crystal - 1	mass after drying	12
POMD	3 1	Mole fraction - 1 ; Liquid	Temperature, K; Liquid	Pressure, kPa; Liquid	Liquid Crystal - 1	mass after drying	12
POMD	4 1	Mole fraction - 1 ; Liquid	Temperature, K; Liquid	Pressure, kPa; Liquid	Liquid Crystal - 1	mass after drying	12
POMD	5 1	Mole fraction - 1 ; Liquid	Temperature, K; Liquid	Pressure, kPa; Liquid	Liquid Crystal - 1	mass after drying	12
POMD	6 1	Mole fraction - 1 ; Liquid	Temperature, K; Liquid	Pressure, kPa; Liquid	Liquid Crystal - 1	mass after drying	12
POMD	7 1	Mole fraction - 1 ; Liquid	Temperature, K; Liquid	Pressure, kPa; Liquid	Liquid Crystal - 1	mass after drying	10
POMD	8 1	Mole fraction - 1 ; Liquid	Temperature, K; Liquid	Pressure, kPa; Liquid	Liquid Crystal - 1	mass after drying	12
POMD	9 1	Mole fraction - 1 ; Liquid	Temperature, K; Liquid	Pressure, kPa; Liquid	Liquid Crystal - 1	mass after drying	12

Thermodynamics Research Center / ThermoML | Fluid Phase Equilibria

Solubilities of crotonic acid in different organic solvents at severaltemperatures from (278.15 to 333.15) K

Cao, Z.[Zheng], Hu, Y.[Yonghong], Kai, Y.[Yumei], Li, J.[Jiaojiao], Zhi, W.[Wenbiao], Yang, W.[Wenge]

ABSTRACT