ABSTRACT

The saturated solution of 1,3-dimethyl-1,1,3,3-tetraphenyldisiloxane in methanol, ethanol, isopropyl alcohol, propanol and octamethylcyclotetrasiloxane from (288.15 to 313.15) K was prepared by an isothermal method and the solubility data were obtained from their respective density and the index of refraction calibration curves. The results show that the solubility of 1,3-dimethyl-1,1,3,3- tetraphenyldisiloxane in the five solvents increases with increasing temperature. Octamethylcyclotetrasiloxane is the most suitable solvent for crystallization of 1,3-dimethyl-1,1,3,3- tetraphenyldisiloxane from solution. The experimental solubility data were correlated by the modified Apelblat equation, the van't Hoff plot, and lambda-h (Buchowski) equation. The results derived from the modified Apelblat equation were better than those derived from the van't Hoff plot and lambda-h equation.

Compounds

#	Formula	Name
1	CH4O	methanol
2	C2H6O	ethanol
3	C3H8O	propan-1-ol
4	C3H8O	propan-2-ol
5	C8H24O4Si4	octamethylcyclotetrasiloxane
6	C26H26OSi2	1,3-dimethyl-1,1,3,3-tetraphenyldisiloxane

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	6	Normal melting temperature, K ; Crystal			Crystal Liquid Air at 1 atmosphere	DTA	1
POMD	1 6	Refractive index (Na D-line) ; Liquid	Mole fraction - 6; Liquid	Pressure, kPa; Liquid Temperature, K; Liquid	Liquid	Standard Abbe refractometry	5
POMD	1 6	Mass density, kg/m3 ; Liquid	Mole fraction - 6; Liquid	Pressure, kPa; Liquid Temperature, K; Liquid	Liquid	Vibrating tube method	5
POMD	1 6	Mole fraction - 6 ; Liquid	Temperature, K; Liquid	Pressure, kPa; Liquid	Liquid Crystal - 6	Index of refraction calibration data	6
POMD	1 6	Mole fraction - 6 ; Liquid	Temperature, K; Liquid	Pressure, kPa; Liquid	Liquid Crystal - 6	Density calibration data	6
POMD	2 6	Refractive index (Na D-line) ; Liquid	Mole fraction - 6; Liquid	Pressure, kPa; Liquid Temperature, K; Liquid	Liquid	Standard Abbe refractometry	7
POMD	2 6	Mass density, kg/m3 ; Liquid	Mole fraction - 6; Liquid	Pressure, kPa; Liquid Temperature, K; Liquid	Liquid	Vibrating tube method	7
POMD	2 6	Mole fraction - 6 ; Liquid	Temperature, K; Liquid	Pressure, kPa; Liquid	Liquid Crystal - 6	Density calibration data	5
POMD	2 6	Mole fraction - 6 ; Liquid	Temperature, K; Liquid	Pressure, kPa; Liquid	Liquid Crystal - 6	Index of refraction calibration data	5
POMD	4 6	Refractive index (Na D-line) ; Liquid	Mole fraction - 6; Liquid	Pressure, kPa; Liquid Temperature, K; Liquid	Liquid	Standard Abbe refractometry	5
POMD	4 6	Mass density, kg/m3 ; Liquid	Mole fraction - 6; Liquid	Pressure, kPa; Liquid Temperature, K; Liquid	Liquid	Vibrating tube method	5
POMD	4 6	Mole fraction - 6 ; Liquid	Temperature, K; Liquid	Pressure, kPa; Liquid	Liquid Crystal - 6	Density calibration data	4
POMD	4 6	Mole fraction - 6 ; Liquid	Temperature, K; Liquid	Pressure, kPa; Liquid	Liquid Crystal - 6	Index of refraction calibration data	4
POMD	3 6	Refractive index (Na D-line) ; Liquid	Mole fraction - 6; Liquid	Pressure, kPa; Liquid Temperature, K; Liquid	Liquid	Standard Abbe refractometry	5
POMD	3 6	Mass density, kg/m3 ; Liquid	Mole fraction - 6; Liquid	Pressure, kPa; Liquid Temperature, K; Liquid	Liquid	Vibrating tube method	5
POMD	3 6	Mole fraction - 6 ; Liquid	Temperature, K; Liquid	Pressure, kPa; Liquid	Liquid Crystal - 6	Density calibration data	4
POMD	3 6	Mole fraction - 6 ; Liquid	Temperature, K; Liquid	Pressure, kPa; Liquid	Liquid Crystal - 6	Index of refraction calibration data	4
POMD	5 6	Refractive index (Na D-line) ; Liquid	Mole fraction - 6; Liquid	Pressure, kPa; Liquid Temperature, K; Liquid	Liquid	Standard Abbe refractometry	5
POMD	5 6	Mass density, kg/m3 ; Liquid	Mole fraction - 6; Liquid	Pressure, kPa; Liquid Temperature, K; Liquid	Liquid	Vibrating tube method	5
POMD	5 6	Mole fraction - 6 ; Liquid	Temperature, K; Liquid	Pressure, kPa; Liquid	Liquid Crystal - 6	Density calibration data	4
POMD	5 6	Mole fraction - 6 ; Liquid	Temperature, K; Liquid	Pressure, kPa; Liquid	Liquid Crystal - 6	Index of refraction calibration data	4

Thermodynamics Research Center / ThermoML | Thermochimica Acta

Solubilities of 1,3-dimethyl-1,1,3,3-tetraphenyldisiloxane in different solvents from (288.15 to 313.15) K

Wu, C.[Chuan], Li, J.[Jing], Dong, H.[Hong], Jiang, J.-H.[Jian-Hong]

ABSTRACT