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IUPAC-NIST Solubility Database
NIST Standard Reference Database 106
Solubility System:
Carbon dioxide with Potassium bromide and Water
Components:
(1) Potassium bromide; KBr; [7758-02-3]
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 - 4
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
0.955
b
0.938
a
15
288.15
1
0.8965
b
0.864
a
15
288.15
2
1.855
b
0.793
a
15
288.15
4
1.054
b
0.901
a
20
293.15
0
-
b
0.860
a
20
293.15
0.5
0.822
b
0.806
a
20
293.15
1
0.770
b
0.742
a
20
293.15
2
0.7605
b
0.705
a
20
293.15
4
0.996
b
0.849
a
25
298.15
0
0.5173
b
0.758
a
25
298.15
0.5
0.725
b
0.710
a
25
298.15
1
0.687
b
0.660
a
25
298.15
2
0.683
b
0.631
a
25
298.15
4
0.936
b
0.797
a
30
303.15
0
-
b
0.671
a
30
303.15
0.5
0.648
b
0.634
a
30
303.15
1
0.621
b
0.596
a
30
303.15
2
0.6275
b
0.578
a
30
303.15
4
0.867
b
0.736
a
35
308.15
0
-
b
0.605
a
35
308.15
0.5
0.5775
b
0.562
a
35
308.15
1
0.550
b
0.527
a
35
308.15
2
0.548
b
0.504
a
35
308.15
4
0.798
b
0.676
a
40
313.15
0
-
b
0.546
a
40
313.15
0.5
0.504
b
0.492
a
40
313.15
1
0.498
b
0.477
a
40
313.15
2
0.482
b
0.443
a
40
313.15
4
0.760
b
0.642
a
45
318.15
0
-
b
0.482
a
45
318.15
0.5
0.464
b
0.453
a
45
318.15
1
0.431
b
0.412
a
45
318.15
2
0.4385
b
0.402
a
45
318.15
4
0.720
b
0.608
a
50
323.15
0
-
b
0.436
a
50
323.15
0.5
0.412
b
0.401
a
50
323.15
1
0.384
b
0.3665
a
50
323.15
2
0.4015
b
0.368
a
50
323.15
4
0.690
b
0.581
a
55
328.15
0
-
b
0.392
a
55
328.15
0.5
0.3725
b
0.362
a
55
328.15
1
0.357
b
0.340
a
55
328.15
2
0.364
b
0.333
a
55
328.15
4
0.665
b
0.557
a
60
333.15
0
-
b
0.372
a
60
333.15
0.5
0.338
b
0.328
a
60
333.15
1
0.334
b
0.318
a
60
333.15
2
0.333
b
0.304
a
60
333.15
4
0.636
b
0.532
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.