SDS Volume
Volume 62. Carbon Dioxide in Water and Aqueous Electrolyte Solutions, p None
Source Publication
Takenouchi, S.; Kennedy, G.; Am. J. Sci. 1965, 263, 445-54.
Conditions:
Room Temp:
423.15 - 723.15
$\pu{K}$
Pressure:
100 bar - 1400 bar
$\pu{bar}$
Mass per 100 g water (2):
102w2 = 0, 6, and 20
Compiler:
Methodology:
The experimental apparatus was the same used in previous experimental work [1]. After equilibration the $\ce{CO2}$ and $\ce{NaCl}$ content of the liquid samples was analyzed. The $\ce{CO2}$ composition was determined by titration against standard $\ce{HCl}$ solution. $\ce{CO2}$ was absorbed in sodium hydroxide and estimated by back titration with HCl. The $\ce{NaCl}$ concentration of the solution was determined by the Mohr method using standardized $\ce{AgNO3}$ solution and a potassium chromate solution as an indicator. The composition of the co-existing gas phase was not determined.
Sample Information:
- (1,2,3) Source and purity not stated.
Measurement Errors:
Ambient temperature: δT/K = ±0.8% (by authors)
Mass concentration (m/v) (1): δS1 = ±2% (by authors)
Methodology Citation
1 Takenouchi, S.; Kennedy, G.; Am. J. Sci. 1964, 262, 1055-74.
System Components:
- Carbon dioxide, $\ce{ CO2 }$; [124-38-9] NIST WebBook
- Sodium chloride, $\ce{ NaCl }$; [7647-14-5] NIST WebBook
- Water, $\ce{ H2O }$; [7732-18-5] NIST WebBook
Experimental Data
In the VARIABLES box, w2 = mass fraction of NaCl.
| $T$ ($\pu{K}$) | $T$ (°C) | $P$ ($\pu{bar}$) | $S$ |
|---|---|---|---|
| 423.15 | 150 | 1E+2 | 0.9a,d |
| 423.15 | 150 | 2E+2 | 1.6a,d |
| 423.15 | 150 | 3E+2 | 2.2a,d |
| 423.15 | 150 | 4E+2 | 2.5a,d |
| 423.15 | 150 | 5E+2 | 2.8a,d |
| 423.15 | 150 | 6E+2 | 3.2a,d |
| 423.15 | 150 | 8E+2 | 3.8a,d |
| 423.15 | 150 | 1 x 103 | 4.3a,d |
| 423.15 | 150 | 1.2 x 103 | 4.8a,d |
| 423.15 | 150 | 1.4 x 103 | 5.3a,d |
| 473.15 | 200 | 1E+2 | - |
| 473.15 | 200 | 2E+2 | - |
| 473.15 | 200 | 3E+2 | - |
| 473.15 | 200 | 4E+2 | - |
| 473.15 | 200 | 5E+2 | - |
| 473.15 | 200 | 6E+2 | - |
| 473.15 | 200 | 8E+2 | - |
| 473.15 | 200 | 1 x 103 | - |
| 473.15 | 200 | 1.2 x 103 | - |
| 473.15 | 200 | 1.4 x 103 | - |
| 523.15 | 250 | 1E+2 | 1.0a,d |
| 523.15 | 250 | 2E+2 | 2.0a,d |
| 523.15 | 250 | 3E+2 | 2.8a,d |
| 523.15 | 250 | 4E+2 | 3.4a,d |
| 523.15 | 250 | 5E+2 | 4.1a,d |
| 523.15 | 250 | 6E+2 | 4.7a,d |
| 523.15 | 250 | 8E+2 | 5.7a,d |
| 523.15 | 250 | 1 x 103 | 6.6a,d |
| 523.15 | 250 | 1.2 x 103 | 7.6a,d |
| 523.15 | 250 | 1.4 x 103 | 8.2a,d |
| 573.15 | 300 | 1E+2 | - |
| 573.15 | 300 | 2E+2 | - |
| 573.15 | 300 | 3E+2 | - |
| 573.15 | 300 | 4E+2 | - |
| 573.15 | 300 | 5E+2 | - |
| 573.15 | 300 | 6E+2 | - |
| 573.15 | 300 | 8E+2 | - |
| 573.15 | 300 | 1 x 103 | - |
| 573.15 | 300 | 1.2 x 103 | - |
| 573.15 | 300 | 1.4 x 103 | - |
| 623.15 | 350 | 2E+2 | 1.1a,d |
| 623.15 | 350 | 3E+2 | 2.6a,d |
| 623.15 | 350 | 4E+2 | 3.9a,d |
| 623.15 | 350 | 5E+2 | 5.1a,d |
| 623.15 | 350 | 6E+2 | 6.2a,d |
| 623.15 | 350 | 8E+2 | 7.9a,d |
| 623.15 | 350 | 1 x 103 | 9.5a,d |
| 623.15 | 350 | 1.2 x 103 | 10.8a,d |
| 623.15 | 350 | 1.4 x 103 | 12.0a,d |
| 673.15 | 400 | 3E+2 | - |
| 673.15 | 400 | 4E+2 | - |
| 673.15 | 400 | 5E+2 | - |
| 723.15 | 450 | 5E+2 | 2.2a,d |
| 723.15 | 450 | 6E+2 | 4.2a,d |
| 723.15 | 450 | 7E+2 | 6.0a,d |
| 723.15 | 450 | 8E+2 | 7.6a,d |
| 723.15 | 450 | 9E+2 | 9.2a,d |
(a) S1 is solubility of CO2, expressed as mass % of CO2 in water and NaCl solutions.
(b) Calculated by the compiler.
(c) Molality of NaCl in the 6 mass % NaCl solution is m2 = 1.09 mol kg-1. (calculated by the compiler)
(d) Molality of NaCl in the 20 mass % solution is m2 = 4.28 mol kg-1. (calculated by the compiler)
