Thermodynamics Research Center / ThermoML | Fluid Phase Equilibria

Measurements and correlation of saturated vapor pressures of diethoxy(methyl)(o-tolyl)silane, diethoxy(methyl)(m-tolyl)silane and diethoxy(methyl)(p-tolyl)silane

Cao, J.[Jian], Wu, C.[Chuan], Dong, H.[Hong], Cheng, D.[Dahai], Zhang, Y.[Yindi], Wu, X.[Xia]
Fluid Phase Equilib. 2012, 334, 137-143
ABSTRACT
Vapor pressures, vaporization enthalpies and acentric factors for new compounds, diethoxy(methyl)(otolyl) silane, diethoxy(methyl)(m-tolyl)silane and diethoxy(methyl)(p-tolyl)silane were reported. The saturated temperature was measured using the inclined ebulliometer in the pressure range from 2000 to 61,000 Pa and the normal boiling point was measured according to the Siwoloboff method. The standard vaporization enthalpy was derived from the temperature dependence of vapor pressure data. The critical parameters were estimated by an improved group contribution method and the acentric factors have been estimated from the Antoine equation and the experimental normal boiling points.
Compounds
# Formula Name
1 C12H20O2Si diethoxy(methyl)(p-tolyl)silane
2 C12H20O2Si diethoxy(methyl)(o-tolyl)silane
3 C12H20O2Si diethoxy(methyl)(m-tolyl)silane
4 C5H9NO N-methylpyrrolidone
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 boiling temperature, K ; Liquid
  • Liquid
  • Gas
  • Siwoloboff method
  • 1
  • POMD
  • 1
  • Vapor or sublimation pressure, kPa ; Liquid
  • Temperature, K; Liquid
  • Liquid
  • Gas
  • Ebulliometric method (Recirculating still)
  • 22
  • POMD
  • 2
  • Normal boiling temperature, K ; Liquid
  • Liquid
  • Gas
  • Siwoloboff method
  • 1
  • POMD
  • 2
  • Vapor or sublimation pressure, kPa ; Liquid
  • Temperature, K; Liquid
  • Liquid
  • Gas
  • Ebulliometric method (Recirculating still)
  • 20
  • POMD
  • 3
  • Normal boiling temperature, K ; Liquid
  • Liquid
  • Gas
  • Siwoloboff method
  • 1
  • POMD
  • 3
  • Vapor or sublimation pressure, kPa ; Liquid
  • Temperature, K; Liquid
  • Liquid
  • Gas
  • Ebulliometric method (Recirculating still)
  • 24
  • POMD
  • 4
  • Normal boiling temperature, K ; Liquid
  • Liquid
  • Gas
  • Siwoloboff method
  • 1
  • POMD
  • 4
  • Vapor or sublimation pressure, kPa ; Liquid
  • Temperature, K; Liquid
  • Liquid
  • Gas
  • Ebulliometric method (Recirculating still)
  • 10