ABSTRACT

The solubilities of thiourea in ethanol or methanol + water from (289.75 to 330.85) K and the enthalpies of solution of thiourea in methanol, ethanol, or water had been determined with the suitable experimental methods and apparatus. The experimental data of solubilities were correlated with the modified Apelblat equation. The solubilities correlated by the model show good agreement with experimental data. The enthalpies of solution for thiourea in methanol, ethanol, or water were also determined. It was concluded that the solvent proton-donor ability and existing steric hindrances for hydrogen bonding and other intermolecular interactions play a decisive role in the solvation of thiourea.

Compounds

#	Formula	Name
1	ClNa	sodium chloride
2	H2O	water
3	CH4N2S	thiourea
4	C2H6O	ethanol
5	CH4O	methanol

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 2	Mole fraction - 1 ; Liquid	Temperature, K; Liquid	Pressure, kPa; Liquid	Liquid Crystal - 1	synthetic method	4
POMD	3 2	Molar enthalpy of solution, kJ/mol ; Liquid	Molality, mol/kg - 3; Liquid Temperature, K; Liquid Pressure, kPa; Liquid		Liquid	ISOPERIBOL	1
POMD	3 2	Mole fraction - 3 ; Liquid	Temperature, K; Liquid	Pressure, kPa; Liquid	Liquid Crystal - 3	Synthetic method	3
POMD	3 4	Molar enthalpy of solution, kJ/mol ; Liquid	Molality, mol/kg - 3; Liquid	Temperature, K; Liquid Pressure, kPa; Liquid	Liquid	ISOPERIBOL	2
POMD	3 4	Mole fraction - 3 ; Liquid	Temperature, K; Liquid	Pressure, kPa; Liquid	Liquid Crystal - 3	Synthetic method	16
POMD	3 5	Molar enthalpy of solution, kJ/mol ; Liquid	Molality, mol/kg - 3; Liquid	Temperature, K; Liquid Pressure, kPa; Liquid	Liquid	ISOPERIBOL	3
POMD	3 5	Mole fraction - 3 ; Liquid	Temperature, K; Liquid	Pressure, kPa; Liquid	Liquid Crystal - 3	Synthetic method	9
POMD	3 4 2	Mole fraction - 3 ; Liquid	Temperature, K; Liquid Solvent: Mass fraction - 4; Liquid	Pressure, kPa; Liquid	Liquid Crystal - 3	Synthetic method	69
POMD	3 5 2	Mole fraction - 3 ; Liquid	Temperature, K; Liquid Solvent: Mass fraction - 5; Liquid	Pressure, kPa; Liquid	Liquid Crystal - 3	Synthetic method	66

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

Solubilities and Enthalpies of Solution for Thiourea in Ethanol or Methanol + Water

Li, H.[Hua], Guo, F.[Feng], Hu, G.[Guoqin], Zhao, L.[Lei], Zhang, Y.[Yadong]

ABSTRACT