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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.; Kurovskaya, N. A., *Geokhimiya 1975, (4), 547-50; Geochem. Int. 1975, 12, 199-201.
Variables:
Temperature = 373.15 K and 423.15 K
Pressure = 373.15 K and 423.15 K
Concentration =
c
2
/mol L
-1
= 0 - 6.9474
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
2
[mol/L]
Keunen coefficient, S
S Note
373.15
47.95
0.00
19.44
a
373.15
47.95
0.00
19.43+
a
373.15
47.95
0.00
19.35
a
373.15
47.95
1.0451
12.81
a
373.15
47.95
1.0451
12.79
a
373.15
47.95
1.9764
9.531
a
373.15
47.95
1.9764
9.528
a
373.15
47.95
2.9874
7.115
a
373.15
47.95
4.8211
4.593
a
373.15
47.95
6.0313
3.568+
a
373.15
47.95
6.0313
3.524+
a
423.15
47.95
0.00
15.21
a
423.15
47.95
0.00
15.32
a
423.15
47.95
0.8818
10.62
a
423.15
47.95
2.5960
6.336
a
423.15
47.95
2.5960
6.248
a
423.15
47.95
4.8672
3.680
a
423.15
47.95
6.9474
2.642
a
423.15
47.95
6.9474
2.544
a
Notes:
+
Equilibrium state approached from supersaturation
a
Solubility of CO
2
:
S
1
=
m
1
(in grams) / 1 kg 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 Ref. 1.
Source and Purity of Materials:
No details given.
Estimated Errors:
Solubility: δS
1
= ± 1 % (estimated by the compiler)
Temperature: δ
T
/K = ± 0.1 (estimated by compiler)
Pressure: δ
P
/bar = ± 0.5 (estimated by the compiler)
References:
1. Malinin, S.D.; Savelyeva, N. I. *Geokhimiya 1972, (6), 643-53; Geochem. Int. 1972, 9, 410-8.