Components:
(1) Carbon dioxide,
CO2; [124-38-9]
NIST WebBook
(2) Potassium chloride,
KCl; [7447-40-7]
NIST WebBook
(3) Water,
H2O; [7732-18-5]
NIST WebBook
Original Measurements
Burmakina, G. V.; Efanov, L. N.; Shnet, M. A.; Russ. J. Phys. Chem. 1982, 56, 705-7.
Variables:
Ambient temperature: 298.15 K
Pressure: 0.1 MPa
Amount concentration (2): 103C2/mol L-1 = 0 - 200
Prepared by:
Method/Apparatus/Procedure:
Attainment of the equilibrium was checked by the constancy of CO2 content in 3-5 subsequent samples of gas after saturation of the solution. The concentration of carbon dioxide was determined by titration.
Source and Purity of Materials:
- Source not give. Before contacting with water solutions CO2 was allowed to pass through the vessels with NaHCO3, glass beads, glass wool, and distilled water.
- Nothing specified.
- Distilled.
Estimated Errors:
Ambient temperature: δT/K = ±0.05
Mass concentration (m/v) (1): δc1/c1 = ±0.06 - 0.2%
Experimental Values:
Solubility of carbon dioxide in aqueous solutions of KCl at 298.15 K a
| T (K) | C2 (mol/L) | C1 (g/L) |
|---|---|---|
| 298.15 | 0.0 | 3.390 x 10-2 |
| 298.15 | 1 x 10-3 | 3.385 x 10-2 |
| 298.15 | 2 x 10-3 | 3.355 x 10-2 |
| 298.15 | 5 x 10-3 | 3.335 x 10-2 |
| 298.15 | 1.0 x 10-2 | 3.360 x 10-2 |
| 298.15 | 2.0 x 10-2 | 3.365 x 10-2 |
| 298.15 | 5.0 x 10-2 | 3.350 x 10-2 |
| 298.15 | 1.00 x 10-1 | 3.320 x 10-2 |
| 298.15 | 2.00 x 10-1 | 3.250 x 10-2 |
(a) Data taken from a graph by compiler. (b) c2 = concentration of KCl (c) c1 = concentration of CO2
