Thermodynamics Research Center / ThermoML | Fluid Phase Equilibria

Phase behavior for the 2-(trimethylsilyloxy)ethyl methacrylate and 3-(trimethoxysilyl)propyl methacrylate in supercritical carbon dioxide

Lee, Bong-Seop, Lee, Jae-Kyung, Bong, Jae-Hwi, Byun, Hun-Soo
Fluid Phase Equilib. 2018, 462, 1-5
ABSTRACT
The solubilities of 2-(trimethylsilyloxy)ethyl methacrylate and 3-(trimethoxysilyl)propyl methacrylate in supercritical CO2 fluid were measured at many different temperatures, i.e. (313.2, 333.2, 353.2, 373.2 and 393.2) K and up to 22.49 MPa pressures using variable-volume high pressure view cell by static-type. Both systems have shown the type-I phase behavior. Their solubility curve in supercritical CO2 fluid was obtained by varying the pressure at a fixed temperature. The PC-SAFT equation of state (EoS) was used to correlate experimental data and to predict the critical pressure locus. The calculated results show a good agreement with experimental data.
Compounds
# Formula Name
1 CO2 carbon dioxide
2 C9H18O3Si 2-(trimethylsilyloxy)ethyl methacrylate
3 C10H20O5Si 3-(trimethoxysilyl)propyl methacrylate
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
  • 2
  • 1
  • Vapor or sublimation pressure, kPa ; Liquid
  • Temperature, K; Liquid
  • Mole fraction - 2; Liquid
  • Liquid
  • Gas
  • Closed cell (Static) method
  • 68
  • POMD
  • 2
  • 1
  • Vapor or sublimation pressure, kPa ; Gas
  • Temperature, K; Gas
  • Mole fraction - 2; Gas
  • Gas
  • Liquid
  • Closed cell (Static) method
  • 5
  • POMD
  • 2
  • 1
  • Critical pressure, kPa ; Liquid
  • Mole fraction - 2; Liquid
  • Liquid
  • Gas
  • Direct measurement
  • 2
  • POMD
  • 2
  • 1
  • Critical temperature, K ; Liquid
  • Mole fraction - 2; Liquid
  • Liquid
  • Gas
  • Visual observation in an unstirred cell
  • 2
  • POMD
  • 3
  • 1
  • Vapor or sublimation pressure, kPa ; Liquid
  • Temperature, K; Liquid
  • Mole fraction - 3; Liquid
  • Liquid
  • Gas
  • Closed cell (Static) method
  • 53
  • POMD
  • 3
  • 1
  • Vapor or sublimation pressure, kPa ; Gas
  • Temperature, K; Gas
  • Mole fraction - 3; Gas
  • Gas
  • Liquid
  • Closed cell (Static) method
  • 5
  • POMD
  • 3
  • 1
  • Critical pressure, kPa ; Liquid
  • Mole fraction - 3; Liquid
  • Liquid
  • Gas
  • Direct measurement
  • 2
  • POMD
  • 3
  • 1
  • Critical temperature, K ; Liquid
  • Mole fraction - 3; Liquid
  • Liquid
  • Gas
  • Visual observation in an unstirred cell
  • 2