Compilation - Carbon dioxide with Water (IUPAC SDS Volume 62)
SDS Volume (2793)
Volume 62. Carbon Dioxide in Water and Aqueous Electrolyte Solutions, p None
Original Measurements
Shagiakhmetov, R. A.; Tarzimanov, A. A.; Deposited Doc. 1981, SPSTL 200 khp - D 81, 1982.
Variables:
Room Temp:
323.15 - 423.15
$\pu{K}$
Pressure:
10 - 80
$\pu{MPa}$
Prepared by:
Method/Apparatus/Procedure:
A static method with sampling and analysis of the liquid phase was used. To attain equilibrium, the cell was gently rocked over 160 degrees.
(The authors also did measurements at 298.15 K, but as the experimental pressures are greater than the $\ce{CO2}$ vapor pressure at that temperature, the data at 298.15 K are not given here.)
Source and Purity of Materials:
- Not stated.
- Not stated.
Estimated Errors:
Mass concentration (m/v) (1): δS = ±(3-5)% (by authors)
Components:
- Carbon dioxide, $\ce{ CO2 }$; [124-38-9] NIST WebBook
- Water, $\ce{ H2O }$; [7732-18-5] NIST WebBook
Experimental Data
| $T$ ($\pu{K}$) | $T$ (°C) | $x_{1}$ | $P$ ($\pu{MPa}$) | $S$ | $P_{\rm{c}}$ ($\pu{bar}$) |
|---|---|---|---|---|---|
| 323.15 | 50 | 0.01999 | 1E+1 | 25.2 | 100 |
| 323.15 | 50 | 0.02293 | 2E+1 | 29.0 | 200 |
| 323.15 | 50 | 0.02655 | 4E+1 | 33.7 | 400 |
| 323.15 | 50 | 0.02854 | 6E+1 | 36.3 | 600 |
| 373.15 | 100 | 0.01444 | 1E+1 | 18.1 | 100 |
| 373.15 | 100 | 0.02030 | 2E+1 | 25.6 | 200 |
| 373.15 | 100 | 0.02509 | 4E+1 | 31.8 | 400 |
| 373.15 | 100 | 0.02907 | 6E+1 | 37.0 | 600 |
| 373.15 | 100 | 0.03521 | 8E+1 | 45.1 | 800 |
| 423.15 | 150 | 0.01160 | 1E+1 | 14.5 | 100 |
| 423.15 | 150 | 0.02092 | 2E+1 | 26.4 | 200 |
| 423.15 | 150 | 0.03037 | 4E+1 | 38.7 | 400 |
| 423.15 | 150 | 0.04291 | 6E+1 | 55.4 | 600 |
| 423.15 | 150 | 0.05823 | 8E+1 | 76.4 | 800 |
(a) Calculated by the compiler.
(b) Solubility of CO2 (cm3 of gas at STP per gram of water.
