SDS Volume
Volume 62. Carbon Dioxide in Water and Aqueous Electrolyte Solutions, p None
Source Publication
Zawisza, A.; Malesinska, B.; J. Chem. Eng. Data 1981, 26, 388-91.
Conditions:
Room Temp:
323.15 - 473.15
$\pu{K}$
Pressure:
0.154 - 5.389
$\pu{MPa}$
x2 = 0.9924 0.9995
Compiler:
Methodology:
A static method was used to determine the dew and boiling points of $\ce{CO2}$/$\ce{H2O}$ mixtures at several pressures and temperatures [1]. The apparatus and the method were checked by measuring the vapor pressure of pure water.
Also given are gas phase compositions, dew points, and molar volume of the gas phase over all the concentration range of both components.
Sample Information:
- Prepared from $\ce{Na2CO3}$ treated with 10% aqueous $\ce{H2SO4}$. Dried over $\ce{P2O5}$.
- Distilled twice.
Measurement Errors:
Ambient temperature: δT/K = ±0.005 (by authors)
Mass concentration (m/v) (1): δP = ±0.03% (by authors)
Methodology Citation
1 Aftienjew, J.; Zawisza, A., J. Chem. Thermodyn. 1977, 9, 153.
System Components:
- Carbon dioxide, $\ce{ CO2 }$; [124-38-9] NIST WebBook
- Water, $\ce{ H2O }$; [7732-18-5] NIST WebBook
Experimental Data
The authors calculated Henry's constants from the data using the virial equation of state. Various corrections were applied. The values of Henry's constants are different temperatures, given as they are in the original source, are listed in the following table:
T/K 323.15 348.15 373.15 398.15 423.15 448.15 473.15
Hp/MPa 303.4 449.6 525.6 588.9 632.8 631.8 593.7
| $T$ ($\pu{K}$) | $x_{1}$ | $P$ ($\pu{bar}$) |
|---|---|---|
| 323.15 | 5 x 10-4a | 2.54 |
| 323.15 | 1.6 x 10-3a | 4.88 |
| 323.15 | 2.5 x 10-3a | 7.62 |
| 323.15 | 3.0 x 10-3a | 8.92 |
| 323.15 | 4.6 x 10-3a | 14.41 |
| 323.15 | 7.6 x 10-3a | 25.05 |
| 348.15 | 5 x 10-4a | 2.37 |
| 348.15 | 4.6 x 10-3a | 21.00 |
| 348.15 | 7.6 x 10-3a | 35.91 |
| 373.15 | 5 x 10-4a | 3.56 |
| 373.15 | 4.6 x 10-3a | 27.10 |
| 373.15 | 7.6 x 10-3a | 45.60 |
| 398.15 | 5 x 10-4a | 5.27 |
| 398.15 | 1.6 x 10-3a | 11.45 |
| 398.15 | 2.5 x 10-3a | 17.73 |
| 398.15 | 3.0 x 10-3a | 21.38 |
| 398.15 | 4.6 x 10-3a | 32.35 |
| 398.15 | 7.6 x 10-3a | 53.89 |
| 423.15 | 5 x 10-4a | 7.69 |
| 423.15 | 1.6 x 10-3a | 15.56 |
| 423.15 | 2.5 x 10-3a | 21.24 |
| 423.15 | 3.0 x 10-3a | 24.99 |
| 423.15 | 4.6 x 10-3a | 36.09 |
| 448.15 | 5 x 10-4a | 11.97 |
| 448.15 | 1.6 x 10-3a | 19.77 |
| 448.15 | 2.5 x 10-3a | 25.96 |
| 448.15 | 3.0 x 10-3a | 30.37 |
| 448.15 | 4.6 x 10-3a | 40.80 |
| 473.15 | 5 x 10-4a | 18.44 |
| 473.15 | 1.6 x 10-3a | 25.39 |
| 473.15 | 2.5 x 10-3a | 31.75 |
| 473.15 | 3.0 x 10-3a | 35.85 |
| 473.15 | 4.6 x 10-3a | 46.16 |
(a) Calculated by the compiler.
(b) Bubble point pressure.
