ABSTRACT

Using the dynamic method of a laser detecting system, the solubilities of dihydrocapsaicin in n-heptane, n-hexane, n-pentane, ethyl acetate, acetone, ethanol, and water from (298.43 to 329.84, 296.14 to 327.57, 297.26 to 306.45, 302.07 to 327.58, 299.49 to 319.77, 301.79 to 328.84, and 324.67 to 331.49) K, respectively, were measured. The experimental data were correlated with the Wilson model, a polynomial empirical equation, and the Apelblat equation. The calculations show that the data correlated with the Wilson model for the former three weak polar solvents have less deviations than those correlated with the polynomial empirical equation and the Apelblat equation, while the data correlated with the polynomial empirical equation for the latter four strong polar solvents have less deviations than those correlated with the Apelblat equation and the Wilson model.

Compounds

#	Formula	Name
1	C18H29NO3	N-(4-hydroxy-3-methoxybenzyl)-8-methylnonanamide
2	H2O	water
3	C2H6O	ethanol
4	C3H6O	acetone
5	C4H8O2	ethyl acetate
6	C5H12	pentane
7	C6H14	hexane
8	C7H16	heptane

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	Molar enthalpy of transition or fusion, kJ/mol ; Crystal			Crystal Liquid Air at 1 atmosphere	DSC	1
POMD	1	Normal melting temperature, K ; Crystal			Crystal Liquid Air at 1 atmosphere	DTA	1
POMD	8 1	Mole fraction - 1 ; Liquid	Temperature, K; Liquid	Pressure, kPa; Liquid	Liquid Crystal - 1	Synthetic	20
POMD	7 1	Mole fraction - 1 ; Liquid	Temperature, K; Liquid	Pressure, kPa; Liquid	Liquid Crystal - 1	Synthetic	20
POMD	6 1	Mole fraction - 1 ; Liquid	Temperature, K; Liquid	Pressure, kPa; Liquid	Liquid Crystal - 1	Synthetic	10
POMD	5 1	Mole fraction - 1 ; Liquid	Temperature, K; Liquid	Pressure, kPa; Liquid	Liquid Crystal - 1	Synthetic	16
POMD	4 1	Mole fraction - 1 ; Liquid	Temperature, K; Liquid	Pressure, kPa; Liquid	Liquid Crystal - 1	Synthetic	16
POMD	3 1	Mole fraction - 1 ; Liquid	Temperature, K; Liquid	Pressure, kPa; Liquid	Liquid Crystal - 1	Synthetic	16
POMD	2 1	Mole fraction - 1 ; Liquid	Temperature, K; Liquid	Pressure, kPa; Liquid	Liquid Crystal - 1	Synthetic	12

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

Measurement and Correlation for the Solubilities of Dihydrocapsaicin in n-Heptane, n-Hexane, n-Pentane, Ethyl Acetate, Acetone, Ethanol, and Water

Zhang, Y.[Yang], Wang, L.[Lisheng], Zhou, R.[Ronghong], Liu, X.[Xiongmin]

ABSTRACT