Thermodynamics Research Center / ThermoML | Journal of Chemical Thermodynamics

Automated apparatus for gas solubility measurements

Fonseca, I. M. A.[Isabel M. A.], Almeida, J. P. B., Fachada, H. C.
J. Chem. Thermodyn. 2007, 39, 10, 1407-1411
ABSTRACT
An automated apparatus based on the Ben-Naim Baer and Tominaga et al. designs [A. Ben-Naim, S. Baer, Trans. Faraday Soc. 59 (1963) 2735 2738; T. Tominaga, R. Battino, H.K. Gorowara, R.D. Dixon, J. Chem. Eng. Data 31 (1986) 175 180] has been implemented for measurements of gas solubilities in liquids under atmospheric pressure and room temperatures. The uncertainty in the measurement of gas solubilities was estimated from the uncertainties in the directly measured quantities using the error propagation law. The accuracy of the experimental method was checked by measuring the solubility of carbon dioxide and nitrous oxide in water in the range T = (290 to 303) K, being found to be 0.6%. A precision of the same order of magnitude was achieved.
Compounds
# Formula Name
1 CO2 carbon dioxide
2 H2O water
3 N2O nitrous oxide
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
  • 2
  • Mole fraction - 1 ; Liquid
  • Temperature, K; Liquid
  • Pressure, kPa; Liquid
  • Liquid
  • Gas
  • Change in gas volume before and after dissolution
  • 14
  • POMD
  • 2
  • 3
  • Mole fraction - 3 ; Liquid
  • Temperature, K; Liquid
  • Pressure, kPa; Liquid
  • Liquid
  • Gas
  • Change in gas volume before and after dissolution
  • 14