IUPAC-NIST Solubility Database
NIST Standard Reference Database 106

Glass Ball as Bullet Solubility System: Carbon dioxide with Potassium sulfate and Water
Components:
   (1) Potassium sulfate; K2SO4; [7778-80-5]  NIST Chemistry WebBook for detail
   (2) Carbon dioxide; CO2; [124-38-9]  NIST Chemistry WebBook for detail
   (3) Water; H2O; [7732-18-5]  NIST Chemistry WebBook for detail
Original Measurements:
   Yasunishi, A.; Yoshida, F., J. Chem. Eng. Data 1979, 24, 11-14.

 Variables:
   Temperature = 298.15 K
   Pressure = 101.325 kPa
   Concentration = c2/mol L-1 = 0 - 0.454

 Prepared By:
   C.L. Young

 Experimental Remarks:
   P = 1 atm = 101.325 kPa = 1.01325 bar

 Experimental Data:   (Subscripts 1,2,3, ..., in column headings refer to components 1,2,3, ...)
   
T/KOstwald coefficient LOstwald NoteConcentration C2 [mol/L]
298.150.8264a0
298.150.7816a0.093
298.150.7435a0.188
298.150.7059a0.283
298.150.6442a0.454
 Notes:
   a  L = Ostwald coefficient [cm3 cm-3]

 Method/Apparatus/Procedure:
   Volumetric apparatus with multibulb buret and magnetic stirrer. Amount of solution and gas absorbed determined volumetrically. Density and composition of solution determined after absorption. Details in Ref. 1.

 Source and Purity of Materials:
   (1) High purity grade sample, purity 99.96 mole %.
   (2,3) Guaranteed reagent, solution degassed by boiling.

 Estimated Errors:
   Solubility: δ;L = ± 1 %
   Temperature: δT/K = ± 0.05

 References:
   1. Tokunaga, J., J. Chem. Eng. Data 1975, 20, 41.