ABSTRACT

The solubility of newly synthesized amide-group-containing pyridine derivatives, N-hexyl-N-(4-pyridyl)- pentadecafluorooctanamide, N-hexyl-N-(4-pyridyl)octanamide, and N-(4-pyridyl)pentadecafluorooctanamide in supercritical carbon dioxide (Sc-CO2) was determined at temperatures ranging from (313 to 343) K and pressures ranging from (8.8 to 24.9) MPa. The solubility of the amide-containing pyridine series was determined primarily by variations in the molecular structure of the solutes, temperature, and pressure. The measured solubility was satisfactorily correlated by a semiempirical model.

Compounds

#	Formula	Name
1	CO2	carbon dioxide
2	C19H17F15N2O	2,2,3,3,4,4,5,5,6,6,7,7,8,8,8-pentadecafluoro-N-hexyl-N-(pyridin-4-yl)octanamide
3	C19H32N2O	N-hexyl-N-(pyridin-4-yl)octanamide
4	C13H5F15N2O	2,2,3,3,4,4,5,5,6,6,7,7,8,8,8-pentadecafluoro-N-(pyridin-4-yl)octanamide

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	Phase	Method	#Points
POMD	1 2	Mole fraction - 2 ; Gas	Temperature, K; Gas Pressure, kPa; Gas	Gas Liquid	Phase equilibration	16
POMD	1 4	Mole fraction - 4 ; Gas	Temperature, K; Gas Pressure, kPa; Gas	Gas Liquid	Phase equilibration	15
POMD	1 3	Mole fraction - 3 ; Fluid (supercritical or subcritical phases)	Temperature, K; Fluid (supercritical or subcritical phases) Pressure, kPa; Fluid (supercritical or subcritical phases)	Fluid (supercritical or subcritical phases) Crystal - 3	Phase equilibration	18

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

Solubility of Novel CO2-Soluble Pyridine Derivatives in Supercritical Carbon Dioxide

Chang, F.[Fei], Kim, H.[Hakwon], Kwon, Y.[Yunja]

ABSTRACT