Thermodynamics Research Center / ThermoML | Journal of Chemical Thermodynamics

Solubility of CO2 in the ionic liquid [hmim][Tf2N]

Kumelan, J.[Jacek], Perez-Salado Kamps, A.[Alvaro], Tuma, D.[Dirk], Maurer, G.[Gerd]
J. Chem. Thermodyn. 2006, 38, 11, 1396-1401
ABSTRACT
New experimental results are presented for the total pressure above liquid mixtures of carbon dioxide and the ionic liquid 1-hexyl-3- methylimidazolium bis(trifluoromethylsulfonyl)imide ([hmim][Tf2N]). The series of experiments were performed at preset temperature and liquid phase composition by means of a very precise high-pressure view-cell technique based on the synthetic method. A temperature range from (293.15 to 413.2) K was investigated where the maximum pressure reached approximately 10 MPa. Gas molalities in [hmim][Tf2N] ranged up to about 4.7 mol Ae kg 1. The (extended) Henry s law is successfully applied to correlate the solubility pressures.
Compounds
# Formula Name
1 CO2 carbon dioxide
2 C12H19F6N3O4S2 1-hexyl-3-methylimidazolium bis[(trifluoromethyl)sulfonyl]imide
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
  • 2
  • Mass density, kg/m3 ; Liquid
  • Temperature, K; Liquid
  • Pressure, kPa; Liquid
  • Liquid
  • VIBTUB:UFactor:4
  • 9
  • POMD
  • 1
  • 2
  • Henry's Law constant (molality scale), kPa*kg/mol - 1 ; Liquid
  • Temperature, K; Liquid
  • Molality, mol/kg - 1; Liquid
  • Liquid
  • Gas
  • Derived from solubility data
  • 4
  • POMD
  • 1
  • 2
  • Vapor or sublimation pressure, kPa ; Liquid
  • Temperature, K; Liquid
  • Molality, mol/kg - 1; Liquid
  • Liquid
  • Gas
  • CCELL:UFactor:2
  • 25