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

Critical Point Measurements for Five n-Alkylcyclohexanes (C6 to C10) by the Pulse-Heating Method

Nikitin, E. D.[Eugene D.], Popov, A. P.[Alexander P.], Bogatishcheva, N. S.[Nataliya S.]
J. Chem. Eng. Data 2003, 48, 5, 1137-1140
ABSTRACT
The paper presents experimental critical temperatures and pressures of five n-alkylcyclohexanes with the number of carbons in the side chain n = 0, 1, 2, 3, 4. The method of pulse heating of a wire probe immersed into the liquid under study has been used. Residence times are from (0.01 to 1) ms. Equations for the correlation of the critical temperatures and pressures of n-alkylcyclohexanes with the number of carbon atoms in the side chain, normal boiling point, and molar mass have been obtained. The experimental critical constants of alkylcyclohexanes have been compared with the values calculated by the group-contribution methods of Lydersen, Joback and Reid, and Constantinou and Gani.
Compounds
# Formula Name
1 C6H12 cyclohexane
2 C7H14 methylcyclohexane
3 C8H16 ethylcyclohexane
4 C9H18 1-cyclohexylpropane
5 C10H20 butylcyclohexane
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
  • DIRECT:dissair
  • 1
  • POMD
  • 1
  • Critical temperature, K ; Liquid
  • Liquid
  • Gas
  • OTHER
  • 1
  • POMD
  • 2
  • Critical pressure, kPa ; Liquid
  • Liquid
  • Gas
  • DIRECT:dissair
  • 1
  • POMD
  • 2
  • Critical temperature, K ; Liquid
  • Liquid
  • Gas
  • OTHER
  • 1
  • POMD
  • 3
  • Critical pressure, kPa ; Liquid
  • Liquid
  • Gas
  • DIRECT:dissair
  • 1
  • POMD
  • 3
  • Critical temperature, K ; Liquid
  • Liquid
  • Gas
  • OTHER
  • 1
  • POMD
  • 4
  • Critical pressure, kPa ; Liquid
  • Liquid
  • Gas
  • DIRECT:dissair
  • 1
  • POMD
  • 4
  • Critical temperature, K ; Liquid
  • Liquid
  • Gas
  • OTHER
  • 1
  • POMD
  • 5
  • Critical pressure, kPa ; Liquid
  • Liquid
  • Gas
  • DIRECT:unst
  • 1
  • POMD
  • 5
  • Critical temperature, K ; Liquid
  • Liquid
  • Gas
  • OTHER
  • 1