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IUPAC-NIST Solubility Database
NIST Standard Reference Database 106
Solubility System:
Carbon dioxide with Potassium chloride and Water
Components:
(1) Potassium chloride; KC1; [7447-40-7]
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 and 308.15 K
Pressure = 101.325 kPa
Concentration =
c
2/mol L
-1
= 0 - 4.131
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/K
Ostwald coefficient L
Ostwald Note
Concentration C
2
[mol/L]
298.15
0.8264
a
0
298.15
0.7576
a
0.498
298.15
0.7041
a
0.980
298.15
0.6177
a
1.890
298.15
0.5554
a
2.702
298.15
0.5063
a
3.505
298.15
0.4703
a
4.131
298.15
0.6675
a
0
298.15
0.6227
a
0.420
298.15
0.5826
a
0.804
308.15
0.5433
a
1.340
308.15
0.5136
a
1.723
308.15
0.4787
a
2.201
308.15
0.4493
a
2.727
308.15
0.4363
a
3.048
308.15
0.4057
a
3.619
308.15
0.4028
a
3.660
308.15
0.3817
a
4.110
Notes:
a
L
= Ostwald coefficient (cm
3
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: δ
T
/K = ± 0.05
References:
1. Tokunaga, J., J. Chem. Eng. Data 1975, 20, 41.