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IUPAC-NIST Solubility Database
NIST Standard Reference Database 106
Solubility System:
Carbon dioxide with Calcium chloride and Water
Components:
(1) Calcium chloride; CaCl2; [10043-52-4]
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:
Malinin, S. D.; Savelyeva, N. I., *Geokhimiya 1972, (6), 643-53; Geochem. Int. 1972, 9, 410-8.
Variables:
Temperature = 293.15 K to 353.15 K
Pressure = 293.15 K to 353.15 K
Concentration =
c
2
/mol L
-1
= 0 - 3.854
Prepared By:
C.L. Young
Experimental Data:
(Subscripts 1,2,3, ..., in column headings refer to components 1,2,3, ...)
T/K
Pressure [bar]
Concentration C
1
Concentration Note
Concentration C
2
[mol/L]
Keunen coefficient, S
S Note
293.15
47.95
52.84
a
0.00
52.84
b
293.15
47.95
41.37
a
0.437
52.84
b
293.15
47.95
42.20+
a
0.437
52.84
b
293.15
47.95
33.59+
a
0.879
52.84
b
293.15
47.95
26.80
a
1.349
52.84
b
293.15
47.95
26.71
a
1.349
52.84
b
293.15
47.95
16.84+
a
2.341
52.84
b
293.15
47.95
16.81+
a
2.341
52.84
b
293.15
47.95
10.49
a
3.443
52.84
b
293.15
47.95
10.47
a
3.443
32.86
b
323.15
47.95
32.86
a
0.00
27.63
b
323.15
47.95
26.39
a
0.437
26.33
b
323.15
47.95
24.84+
a
0.5531
26.33
b
323.15
47.95
24.82+
a
0.5531
19.68
b
323.15
47.95
17.14
a
1.349
16.01
b
323.15
47.95
13.19
a
1.935
16.01
b
323.15
47.95
13.19
a
1.935
13.96
b
323.15
47.95
11.07
a
2.354
13.96
b
353.15
47.95
23.92
a
0.00
23.92
b
353.15
47.95
22.01
a
0.1554
22.46
b
353.15
47.95
22.15
a
0.1554
22.46
b
353.15
47.95
15.33+
a
0.8766
16.86
b
353.15
47.95
15.36+
a
0.8766
16.86
b
353.15
47.95
13.84+
a
1.173
15.37
b
353.15
47.95
30.60+
a
1.173
15.37
b
353.15
47.95
12.88+
a
1.283
14.70
b
353.15
47.95
12.68+
a
1.283
14.70
b
353.15
47.95
9.05
a
2.099
11.16
b
353.15
47.95
4.58
a
3.854
6.69
b
Notes:
+
Equilibrium state approached from supersaturation
a
Solubility of CO
2
:
C
1
=
m
1
(in grams) / 1 kg of solution
b
Solubility of CO
2
:
S
1
=
m
1
(in grams) / 1 kg of water
Method/Apparatus/Procedure:
Flow system with about 0.25 L of solution in 0.5 L stainless steel cell. After equilibrium established, liquid sampled and carbon dioxide absorbed in potassium hydroxide. Gain in weight of absorption train used to estimate amount of carbon dioxide. Details in source.
Source and Purity of Materials:
(1) GOST 8050-64 sample.
(2) Analytical reagent grade sample.
(3) No details given.
Estimated Errors:
Solubility: δ
C
1
, δS
1
= ± 0.5 % (estimated by the compiler)
Temperature: δ
T
/K = ± 0.1 (estimated by compiler)
Pressure: δ
P
/bar = ± 0.1 (estimated by the compiler)