Compilation - Carbon dioxide with Water (IUPAC SDS Volume 62)
SDS Volume (2791)
Volume 62. Carbon Dioxide in Water and Aqueous Electrolyte Solutions, p None
Original Measurements
Murray, C. N.; Riley, J. P.; Deep-Sea Res. 1971, 18, 533-41.
Variables:
Room Temp:
274.19 - 308.15
$\pu{K}$
Pressure:
101.325
$\pu{kPa}$
Prepared by:
Method/Apparatus/Procedure:
Equilibrated solutions were prepared by bubbling gas through magnetically stirred water till equilibrium was reached.
The $\ce{CO2}$ content was determined by acidifying the solutions and after degassing then, precisely weighing the evolved $\ce{CO2}$.
Source and Purity of Materials:
- 99.9%, tested by mass spectrometry.
- Conductivity water, degassed.
Estimated Errors:
Ambient temperature: δT/K = ±0.02 (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) | $x_{1}$ | α ($\pu{cm3(g) cm-3(l) atm-1}$) | $P_{\rm{c}}$ ($\pu{bar}$) |
|---|---|---|---|---|
| 274.19 | 1.04 | 1.331 x 10-3 | 1.6471 | 1.020 |
| 278.15 | 5.00 | 1.148 x 10-3 | 1.4199 | 1.022 |
| 283.15 | 10.00 | 9.645 x 10-4 | 1.1926 | 1.026 |
| 288.15 | 15.00 | 8.174 x 10-4 | 1.0100 | 1.030 |
| 293.15 | 20.00 | 7.009 x 10-4 | 0.8652 | 1.037 |
| 298.15 | 25.00 | 6.099 x 10-4 | 0.7519 | 1.045 |
| 305.15 | 32.00 | 5.150 x 10-4 | 0.6336 | 1.061 |
| 308.15 | 35.00 | 4.805 x 10-4 | 0.5905 | 1.070 |
(a) Calculated by the compiler.
(b) Bunsen coefficient [cm3 (STP) cm-3 atm-1].
The results are the mean of at least three measurements.
