ABSTRACT

The solubility of 2,3,4,5-tetrabromothiophene were measured in methanol, ethanol, propan-1-ol, butan- 1-ol, toluene, ethyl formate, ethyl acetate, trichloromethane and oxolane within the temperature range between 278.05 K and 325.15 K under atmospheric pressure by gravimetric method. The solubility of 2,3,4,5-tetrabromothiophene in those selected solvents increased with increasing temperature. The solubility data were correlated with the van t Hoff equation, the modified Apelblat equation and the kh equation. The thermodynamic properties of the solution process, including the Gibbs energy, enthalpy, and entropy were calculated by the van t Hoff analysis and the Gibbs equation. The experimental results showed that ethyl acetate had the potential as a better solvent in the re-crystallization process of 2,3,4,5- tetrabromothiophene.

Compounds

#	Formula	Name
1	C4Br4S	perbromothiophene
2	ClNa	sodium chloride
3	H2O	water
4	CH4O	methanol
5	C3H8O	propan-1-ol
6	C7H8	toluene
7	C4H8O2	ethyl acetate
8	C4H8O	tetrahydrofuran
9	C2H6O	ethanol
10	C4H10O	butan-1-ol
11	C3H6O2	ethyl methanoate
12	CHCl3	trichloromethane

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	2 3	Mole fraction - 2 ; Liquid	Temperature, K; Liquid	Pressure, kPa; Liquid	Liquid Crystal - 2	gravimetric	4
POMD	4 1	Mole fraction - 1 ; Liquid	Temperature, K; Liquid	Pressure, kPa; Liquid	Liquid Crystal - 1	gravimetric	11
POMD	9 1	Mole fraction - 1 ; Liquid	Temperature, K; Liquid	Pressure, kPa; Liquid	Liquid Crystal - 1	gravimetric	11
POMD	5 1	Mole fraction - 1 ; Liquid	Temperature, K; Liquid	Pressure, kPa; Liquid	Liquid Crystal - 1	gravimetric	11
POMD	10 1	Mole fraction - 1 ; Liquid	Temperature, K; Liquid	Pressure, kPa; Liquid	Liquid Crystal - 1	gravimetric	11
POMD	6 1	Mole fraction - 1 ; Liquid	Temperature, K; Liquid	Pressure, kPa; Liquid	Liquid Crystal - 1	gravimetric	11
POMD	11 1	Mole fraction - 1 ; Liquid	Temperature, K; Liquid	Pressure, kPa; Liquid	Liquid Crystal - 1	gravimetric	11
POMD	7 1	Mole fraction - 1 ; Liquid	Temperature, K; Liquid	Pressure, kPa; Liquid	Liquid Crystal - 1	gravimetric	11
POMD	12 1	Mole fraction - 1 ; Liquid	Temperature, K; Liquid	Pressure, kPa; Liquid	Liquid Crystal - 1	gravimetric	11
POMD	8 1	Mole fraction - 1 ; Liquid	Temperature, K; Liquid	Pressure, kPa; Liquid	Liquid Crystal - 1	gravimetric	11

Thermodynamics Research Center / ThermoML | Journal of Chemical Thermodynamics

Measurement and correlation of the solubility of 2,3,4,5-tetrabromothiophene in different solvents

Wang, K., Hu, Y., Yang, W.-g.[Wen-ge], Guo, S.[Song], Shi, Y.[Ying]

ABSTRACT