Components:
(1) Carbon dioxide,
CO2; [124-38-9]
NIST WebBook
(2) Sodium chloride,
NaCl; [7647-14-5]
NIST WebBook
(3) Water,
H2O; [7732-18-5]
NIST WebBook
Original Measurements
Malinin, S. D.; Savelyeva, N. I.; Geochem. Int. 1972, 9, 410-8.
Variables:
Ambient temperature: 298.15 - 358.15 K
Pressure: 47.95 bar
Amount concentration (2): C2/mol L-1 = 0 - 4.458
Prepared by:
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:
- GOST 8050-64 sample.
- Analytical reagent grade sample.
- No details given.
Estimated Errors:
Ambient temperature: δT/K = ±0.1 (estimated by compiler)
Mass concentration (m/v) (1): δC1, δS1 = ±0.5% (estimated by compiler)
Pressure: δP/bar = ±0.1 (estimated by compiler)
Experimental Values:
| T (K) | C2 (mol/L) | P (bar) | β | C1 (g/kg) |
|---|---|---|---|---|
| 298.15 | 0.0 | 47.95 | 52.84 | 52.67 |
| 298.15 | 0.0 | 47.95 | 52.84 | 52.95 |
| 298.15 | 0.0 | 47.95 | 52.84 | 52.84 |
| 298.15 | 9.05 x 10-1 | 47.95 | 43.25 | 40.81 |
| 298.15 | 9.05 x 10-1 | 47.95 | 43.25 | 41.61 |
| 298.15 | 9.05 x 10-1 | 47.95 | 43.25 | 40.98 |
| 298.15 | 9.05 x 10-1 | 47.95 | 43.25 | 40.99 |
| 298.15 | 9.05 x 10-1 | 47.95 | 43.25 | 41.27 |
| 298.15 | 1.793 | 47.95 | 36.14 | 32.71 |
| 298.15 | 2.597 | 47.95 | 30.43 | 26.19 |
| 298.15 | 2.597 | 47.95 | 30.43 | 26.23 |
| 323.15 | 0.0 | 47.95 | 32.86 | 32.86 |
| 323.15 | 0.0 | 47.95 | 32.86 | 32.865 |
| 323.15 | 0.0 | 47.95 | 32.86 | 32.9 |
| 323.15 | 0.0 | 47.95 | 32.86 | 32.73 |
| 323.15 | 3.58 x 10-1 | 47.95 | 30.38 | 29.84 |
| 323.15 | 3.58 x 10-1 | 47.95 | 30.38 | 29.77 |
| 323.15 | 1.012 | 47.95 | 26.72 | 25.1 |
| 323.15 | 1.012 | 47.95 | 26.72 | 25.25 |
| 323.15 | 1.794 | 47.95 | 23.14 | 20.8 |
| 323.15 | 1.794 | 47.95 | 23.14 | 20.94 |
| 323.15 | 2.741 | 47.95 | 19.95 | 17.17 |
| 358.15 | 0.0 | 47.95 | 23.92 | 23.93 |
| 358.15 | 0.0 | 47.95 | 23.92 | 24.01 |
| 358.15 | 0.0 | 47.95 | 23.92 | 23.79 |
| 358.15 | 0.0 | 47.95 | 23.92 | 23.99 |
| 358.15 | 4.162 x 10-1 | 47.95 | 21.92 | 21.38 |
| 358.15 | 4.162 x 10-1 | 47.95 | 21.92 | 21.42 |
| 358.15 | 1.133 | 47.95 | 19.06 | 17.81 |
| 358.15 | 1.133 | 47.95 | 19.06 | 17.88 |
| 358.15 | 2.2 | 47.95 | 16.03 | 14.07 |
| 358.15 | 2.2 | 47.95 | 16.03 | 14.19 |
| 358.15 | 3.216 | 47.95 | 13.89 | 11.68 |
| 358.15 | 4.429 | 47.95 | 11.64 | 9.29 |
| 358.15 | 4.429 | 47.95 | 11.64 | 9.2 |
| 358.15 | 4.458 | 47.95 | 11.6 | 9.18 |
| 358.15 | 4.458 | 47.95 | 11.6 | 9.24 |
(+) Equilibrium state approached from supersaturation (a) Solubility of CO2: C1 = m1 (in grams) / 1 kg of solution (b) Solubility of CO2: S1 = m1 (in grams) / 1 kg of water
