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

Experimental Vapor Pressures of Six n-Alkanes (C21, C23, C25, C27, C29, C30) in the Temperature Range between 350 K and 460 K

Sawaya, T.[Terufat], Mokbel, I.[Ilham], Ainous, N.[Nedal], Rauzy, E.[Evelyne], Berro, C.[Charles], Jose, J.[Jacques]
J. Chem. Eng. Data 2006, 51, 3, 854-858
ABSTRACT
Vapor pressures of six normal alkanes (heneicosane, tricosane, pentacosane, heptacosane, nonacosane, and triacontane) were measured from 0.5 Pa to 600 Pa using a static apparatus. The experimental data (P-T) were smoothed using the Antoine equation and compared with the available literature values. Pressures were then calculated by means of a modified Peng-Robinson equation of state and compared with experimental values. The model represents the experimental results quite well.
Compounds
# Formula Name
1 C21H44 heneicosane
2 C23H48 tricosane
3 C25H52 pentacosane
4 C27H56 heptacosane
5 C29H60 nonacosane
6 C30H62 triacontane
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
  • Vapor or sublimation pressure, kPa ; Liquid
  • Temperature, K; Liquid
  • Liquid
  • Gas
  • DCELL:UFactor:2
  • 11
  • POMD
  • 2
  • Vapor or sublimation pressure, kPa ; Liquid
  • Temperature, K; Liquid
  • Liquid
  • Gas
  • DCELL:UFactor:2
  • 7
  • POMD
  • 3
  • Vapor or sublimation pressure, kPa ; Liquid
  • Temperature, K; Liquid
  • Liquid
  • Gas
  • DCELL:UFactor:2
  • 14
  • POMD
  • 4
  • Vapor or sublimation pressure, kPa ; Liquid
  • Temperature, K; Liquid
  • Liquid
  • Gas
  • DCELL:UFactor:2
  • 11
  • POMD
  • 5
  • Vapor or sublimation pressure, kPa ; Liquid
  • Temperature, K; Liquid
  • Liquid
  • Gas
  • DCELL:UFactor:2
  • 7
  • POMD
  • 6
  • Vapor or sublimation pressure, kPa ; Liquid
  • Temperature, K; Liquid
  • Liquid
  • Gas
  • DCELL:UFactor:2
  • 5