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]
Fluid Phase Equilib. 2016, 423, 74-83
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