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

Critical Point and Vapor Pressure Measurements for Four Compounds by a Low Residence Time Flow Method

VonNiederhausern, D. M.[David M.], Wilson, G. M.[Grant M.], Giles, N. F.[Neil F.]
J. Chem. Eng. Data 2006, 51, 6, 1986-1989
ABSTRACT
Critical temperature, critical pressure, and vapor pressure measurements have been performed on three compounds by a flow method with ultralow residence times. These compounds are as follows: 1,6-hexanediol, 1,3-benzenediol, and piperazine. Accurate vapor pressure data are also included for 1,2-benzenediol, but this compound proved too unstable to directly determine the critical constants using this apparatus.
Compounds
# Formula Name
1 C6H14O2 1,6-hexanediol
2 C6H6O2 1,3-benzenediol
3 C4H10N2 piperazine
4 C6H6O2 1,2-benzenediol
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
  • Critical pressure, kPa ; Liquid
  • Liquid
  • Gas
  • Low residence time flow calorimetry
  • 1
  • POMD
  • 1
  • Critical temperature, K ; Liquid
  • Liquid
  • Gas
  • Low residence time flow method
  • 1
  • POMD
  • 1
  • Vapor or sublimation pressure, kPa ; Liquid
  • Temperature, K; Liquid
  • Liquid
  • Gas
  • low residence time flow method
  • 8
  • POMD
  • 2
  • Critical pressure, kPa ; Liquid
  • Liquid
  • Gas
  • Low residence time flow calorimetry
  • 1
  • POMD
  • 2
  • Critical temperature, K ; Liquid
  • Liquid
  • Gas
  • Low residence time flow method
  • 1
  • POMD
  • 2
  • Vapor or sublimation pressure, kPa ; Liquid
  • Temperature, K; Liquid
  • Liquid
  • Gas
  • low residence time flow method
  • 8
  • POMD
  • 3
  • Critical pressure, kPa ; Liquid
  • Liquid
  • Gas
  • Low residence time flow calorimetry
  • 1
  • POMD
  • 3
  • Critical temperature, K ; Liquid
  • Liquid
  • Gas
  • Low residence time flow calorimetry
  • 1
  • POMD
  • 3
  • Vapor or sublimation pressure, kPa ; Liquid
  • Temperature, K; Liquid
  • Liquid
  • Gas
  • low residence time flow method
  • 9
  • POMD
  • 4
  • Vapor or sublimation pressure, kPa ; Liquid
  • Temperature, K; Liquid
  • Liquid
  • Gas
  • low residence time flow method
  • 16