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

Measurements of the Critical Parameters for cis-1,1,1,4,4,4-Hexafluoro-2-butene

Tanaka, K.[Katsuyuki], Akasaka, R.[Ryo], Sakaue, E.[Eiichi], Ishikawa, J.[Junichi], Kontomaris, K.[Konstantinos]
J. Chem. Eng. Data 2017, 62, 3, 1135-1138
ABSTRACT
In this work, measurements of the critical parameters for cis-1,1,1,4,4,4-hexafluoro-2-butene (HFO-1336mzz(Z)) were carried out by the meniscus disappearance method. Menisci were observed along five isochoric lines in the density range from 465 kg*m 3 to 536 kg*m 3, that is, near the critical density reported in our previous work. Critical opalescence was observed along all isochoric lines. The critical density was determined as the density at which the meniscus remained fixed with decreasing temperature. The critical temperature and critical pressure were determined from the observation of the meniscus disappearance with temperature increasing in 0.01 K intervals. The critical density, critical temperature, and critical pressure of HFO-1336mzz(Z) were determined to be 507 +- 5 kg*m 3, 444.50 +- 0.03 K, and 2895 +- 6 kPa, respectively.
Compounds
# Formula Name
1 C4H2F6 (Z)-1,1,1,4,4,4-hexafluorobut-2-ene
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 density, kg/m3 ; Liquid
  • Liquid
  • Gas
  • visual
  • 1
  • POMD
  • 1
  • Critical temperature, K ; Liquid
  • Liquid
  • Gas
  • Visual observation in an unstirred cell
  • 1
  • POMD
  • 1
  • Critical pressure, kPa ; Liquid
  • Liquid
  • Gas
  • Direct measurement
  • 1