Korean Journal of Chemical Engineering

, Volume 3, Issue 1, pp 67–72 | Cite as

Ionization and Henry’s law constants for volatile, weak electrolyte water pollutants

  • Ki-Pung Yoo
  • Soo Yong Lee
  • Won Hong Lee


Data base on ionization and Henry’s law constants up to 673 K are presented by temperature dependent equations for volatile, weak electrolyte water pollutants; ammonia, carbon dioxide, hydrogen sulfide, sulfur dioxide and hydrogen cyanide. In the fitting of ionization constants, various recent sources of experimental isothermal data are mainly utilized, however. Henry’s constants are correlated by two steps: first the vapor pressures, the partial molar volumes at infinite dilution, and the vapor and liquid phase nonidealities based on the vapor-liquid equilibrium conditions are calculated from P-T-x data. And then the calculated Henry’s constants at different isotherms are treated as a function of temperature. Both correlations reproduce actual data accurately up to high temperatures for reliable phase equilibrium calculations.


Hydrogen Sulfide Partial Molar Volume Infinite Dilution Ionization Constant Hydrogen Cyanide 
These keywords were added by machine and not by the authors. This process is experimental and the keywords may be updated as the learning algorithm improves.


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Copyright information

© Korean Institute of Chemical Engineering 1986

Authors and Affiliations

  • Ki-Pung Yoo
    • 1
  • Soo Yong Lee
    • 1
  • Won Hong Lee
    • 1
  1. 1.Department of Chemical EngineeringSogang UniversityKorea

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