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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:
Gerecke, J., Diss. Dr. rer. Nat. 1969, Hochsch. "Carl Schorlemmer", Leuna-Merseburg, DDR.
Variables:
Temperature = 288.15 K to 333.15 K
Pressure = 101.325 kPa
Concentration =
c
2/mol dm
-3
= 0 - 3
Prepared By:
D.M. Mason
Experimental Data:
(Subscripts 1,2,3, ..., in column headings refer to components 1,2,3, ...)
t/°C
T/K
Concentration C
2
[mol/dm
3
]
Keunen coefficient, S
S Note
α
α Note
15
288.15
0
-
b
0.990
a
15
288.15
0.5
0.922
b
0.899
a
15
288.15
1
0.847
b
0.820
a
15
288.15
2
0.785
b
0.736
a
15
288.15
3
0.752
b
0.680
a
20
293.15
0
-
b
0.860
a
20
293.15
0.5
0.794
b
0.781
a
20
293.15
1
0.7405
b
0.714
a
20
293.15
2
0.659
b
0.616
a
20
293.15
3
0.6375
b
0.575
a
25
298.15
0
-
b
0.758
a
25
298.15
0.5
0.706
b
0.693
a
25
298.15
1
0.6645
b
0.642
a
25
298.15
2
0.5995
b
0.560
a
25
298.15
3
0.556
b
0.501
a
30
303.15
0
-
b
0.671
a
30
303.15
0.5
0.6175
b
0.606
a
30
303.15
1
0.567
b
0.547
a
30
303.15
2
0.532
b
0.4955
a
30
303.15
3
0.502
b
0.452
a
35
308.15
0
-
b
0.305
a
35
308.15
0.5
0.5363
b
0.525
a
35
308.15
1
0.4964
b
0.478
a
35
308.15
2
0.467
b
0.434
a
35
308.15
3
0.449
b
0.403
a
40
313.15
0
-
b
0.546
a
40
313.15
0.5
0.482
b
0.471
a
40
313.15
1
0.4425
b
0.425
a
40
313.15
2
0.4102
b
0.381
a
40
313.15
3
0.383
b
0.341
a
45
318.15
0
-
b
0.482
a
45
318.15
0.5
0.430
b
0.4195
a
45
318.15
1
0.397
b
0.381
a
45
318.15
2
0.372
b
0.345
a
45
318.15
3
0.3534
b
0.316
a
50
323.15
0
-
b
0.436
a
50
323.15
0.5
0.386
b
0.376
a
50
323.15
1
0.352
b
0.337
a
50
323.15
2
0.3265
b
0.3020
a
50
323.15
3
0.3166
b
0.2825
a
55
328.15
0
-
b
0.392
a
55
328.15
0.5
0.342
b
0.333
a
55
328.15
1
0.3155
b
0.302
a
55
328.15
2
0.2936
b
0.2710
a
55
328.15
3
0.281
b
0.251
a
60
333.15
0
-
b
0.372
a
60
333.15
0.5
0.3102
b
0.302
a
60
333.15
1
0.2844
b
0.272
a
60
333.15
2
0.2655
b
0.245
a
60
333.15
3
0.254
b
0.227
a
Notes:
a
α = Bunsen coefficient [cm
3
(STP) cm
-3
atm
-1
].
b
S
= Kuenen coefficient [cm
3
(STP) g
-1
(H
2
O) atm
-1
].
Method/Apparatus/Procedure:
The principle of the Ostwald method was used in which a measured volume of gas-free liquid is stirred in the presence of the gas, and its decrease in volume is measured in a burette over mercury. The volume of liquid was measured at the experimental temperature. For calculation of the Kuenen coefficient, the density of the solution was obtained from Landolt-Börnstein extant 1969. The molar concentration of salt in the liquid was standardized at 20°C. These data are analyzed and discussed further in Ref. 1.
Source and Purity of Materials:
(1)VEB Leuna Works; 99.8 vol %; the impurity was mostly water (author).
(2) DDR pro analysis grade by DDR Standard TGL 5021.
(3) Double distilled.
Estimated Errors:
Temperature: Not given.
References:
1. Gerecke, J.; Bittrich, H.J., Wiss. Z. Tech. Hochsch. Chem. "Carl Schorlemmer" Leuna-Merseburg 1971, 13(2), 115-22.