ABSTRACT

Solid-liquid phase diagrams of six binary mixtures composed by trilaurin plus fatty acids (myristic acid, palmitic acid and stearic acid) and trilaurin plus fatty alcohols (1-tetradecanol, 1-hexadecanol and 1- octadecanol) were studied by differential scanning calorimetry (DSC) and some mixtures by optical microscopy. The experimental data showed that all the studied systems present an eutectic point. Trilaurin + 1-tetradecanol and trilaurin + 1-hexadecanol systems exhibited a partial formation of solid solution. Experimental data were used to adjust the parameters of the three-suffix Margules and NRTL models and the results showed that these models can appropriately describe the liquidus lines of above mentioned systems.

Compounds

#	Formula	Name
1	C39H74O6	1,2,3-propanetriyl tridodecanoate
2	C14H28O2	tetradecanoic acid
3	C16H32O2	hexadecanoic acid
4	C18H36O2	octadecanoic acid
5	C14H30O	1-tetradecanol
6	C16H34O	1-hexadecanol
7	C18H38O	1-octadecanol

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	Normal melting temperature, K ; Crystal			Crystal Liquid Air at 1 atmosphere	DTA	1
POMD	1	Normal melting temperature, K ; Crystal			Crystal Liquid Air at 1 atmosphere	DTA	1
POMD	1	Molar enthalpy of transition or fusion, kJ/mol ; Crystal			Crystal Liquid Gas	Differential scanning calorimeter	1
POMD	1	Molar enthalpy of transition or fusion, kJ/mol ; Crystal			Crystal Liquid Gas	Differential scanning calorimeter	1
POMD	1	Molar enthalpy of transition or fusion, kJ/mol ; Crystal			Crystal Liquid Gas	UNKNOWN	1
POMD	2	Normal melting temperature, K ; Crystal			Crystal Liquid Air at 1 atmosphere	DTA	1
POMD	3	Normal melting temperature, K ; Crystal			Crystal Liquid Air at 1 atmosphere	DTA	1
POMD	3	Molar enthalpy of transition or fusion, kJ/mol ; Crystal			Crystal Liquid Gas	Differential scanning calorimeter	1
POMD	4	Normal melting temperature, K ; Crystal			Crystal Liquid Air at 1 atmosphere	DTA	1
POMD	4	Molar enthalpy of transition or fusion, kJ/mol ; Crystal			Crystal Liquid Gas	Differential scanning calorimeter	1
POMD	5	Normal melting temperature, K ; Crystal			Crystal Liquid Air at 1 atmosphere	DTA	1
POMD	6	Normal melting temperature, K ; Crystal			Crystal Liquid Air at 1 atmosphere	DTA	1
POMD	6	Molar enthalpy of transition or fusion, kJ/mol ; Crystal 2			Crystal 2 Liquid Gas	Differential scanning calorimeter	1
POMD	7	Normal melting temperature, K ; Crystal			Crystal Liquid Air at 1 atmosphere	DTA	1
POMD	7	Molar enthalpy of transition or fusion, kJ/mol ; Crystal 2			Crystal 2 Liquid Gas	Differential scanning calorimeter	1
POMD	1 2	Eutectic temperature, K ; Crystal - 1			Crystal - 1 Crystal - 2 Liquid Air at 1 atmosphere	DTA	1
POMD	1 2	Solid-liquid equilibrium temperature, K ; Liquid	Mole fraction - 1; Liquid	Pressure, kPa; Liquid	Liquid Crystal - 2	DTA	6
POMD	1 2	Solid-liquid equilibrium temperature, K ; Liquid	Mole fraction - 1; Liquid	Pressure, kPa; Liquid	Liquid Crystal - 1	DTA	5
POMD	3 1	Eutectic temperature, K ; Crystal - 1			Crystal - 1 Crystal - 3 Liquid Air at 1 atmosphere	DTA	1
POMD	3 1	Solid-liquid equilibrium temperature, K ; Liquid	Mole fraction - 1; Liquid	Pressure, kPa; Liquid	Liquid Crystal - 3	DTA	9
POMD	3 1	Solid-liquid equilibrium temperature, K ; Liquid	Mole fraction - 1; Liquid	Pressure, kPa; Liquid	Liquid Crystal - 1	DTA	2
POMD	4 1	Eutectic temperature, K ; Crystal - 1			Crystal - 1 Crystal - 4 Liquid Air at 1 atmosphere	DTA	1
POMD	4 1	Solid-liquid equilibrium temperature, K ; Liquid	Mole fraction - 1; Liquid	Pressure, kPa; Liquid	Liquid Crystal - 4	DTA	11
POMD	4 1	Solid-liquid equilibrium temperature, K ; Liquid	Mole fraction - 1; Liquid Pressure, kPa; Liquid		Liquid Crystal - 1	DTA	1
POMD	5 1	Eutectic temperature, K ; Crystal - 1			Crystal - 1 Crystal - 5 Liquid Air at 1 atmosphere	DTA	1
POMD	5 1	Solid-liquid equilibrium temperature, K ; Liquid	Mole fraction - 1; Liquid Pressure, kPa; Liquid		Liquid Crystal - 5	DTA	1
POMD	5 1	Solid-liquid equilibrium temperature, K ; Liquid	Mole fraction - 1; Liquid	Pressure, kPa; Liquid	Liquid Crystal - 1	DTA	10
POMD	1 6	Eutectic temperature, K ; Crystal - 1			Crystal - 1 Crystal - 6 Liquid Air at 1 atmosphere	DTA	1
POMD	1 6	Solid-liquid equilibrium temperature, K ; Liquid	Mole fraction - 1; Liquid	Pressure, kPa; Liquid	Liquid Crystal - 6	DTA	6
POMD	1 6	Solid-liquid equilibrium temperature, K ; Liquid	Mole fraction - 1; Liquid	Pressure, kPa; Liquid	Liquid Crystal - 1	DTA	5
POMD	7 1	Eutectic temperature, K ; Crystal - 1			Crystal - 1 Crystal - 7 Liquid Air at 1 atmosphere	DTA	1
POMD	7 1	Solid-liquid equilibrium temperature, K ; Liquid	Mole fraction - 1; Liquid	Pressure, kPa; Liquid	Liquid Crystal - 7	DTA	9
POMD	7 1	Solid-liquid equilibrium temperature, K ; Liquid	Mole fraction - 1; Liquid	Pressure, kPa; Liquid	Liquid Crystal - 1	DTA	2

Thermodynamics Research Center / ThermoML | Fluid Phase Equilibria

Binary solid-liquid equilibrium systems containing fatty acids, fatty alcohols and trilaurin by differential scanning calorimetry

Matos, F. a. C. d.[Fl avio Cardoso de], Costa, M. C. d.[Mariana Conceicao da], Meirelles, A. J. d. A.[Antonio Jose de Almeida], Batista, E. A. C.[Eduardo Augusto Caldas]

ABSTRACT