Components:
(1) Carbon dioxide,
CO2; [124-38-9]
NIST WebBook
(2) Water,
H2O; [7732-18-5]
NIST WebBook
Original Measurements
Yeh, S-Y.; Peterson, R. E.; J. Pharm. Sci. 1964, 53, 822-4.
Variables:
Ambient temperature: 298.15 - 318.15 K
Pressure: 101.325 kPa
Prepared by:
Method/Apparatus/Procedure:
The method and apparatus used are described in Ref. 1 with two minor modifications: the mercury sealing cup was eliminated in the new version and the gas was presaturated with water vapor.
Source and Purity of Materials:
- Research grade Matheson Co. Minimum purity 99.7%.
- Redistilled from all glass still. Degassed.
Estimated Errors:
Ambient temperature: δT/K = ±0.05
Mass concentration (m/v) (1): δL = ±1% (authors)
Pressure: δP/mmHg = ±2
(δP/bar = ±0.003)
References
1 Yeh, S-Y.; Peterson, R. E.; J. Pharm. Sci. 1963, 52, 453-458.
Experimental Values:
| T (K) | T (°C) | x1 | P (bar) | L |
|---|---|---|---|---|
| 298.15 | 25.0 | 5.842 x 10-4 | 1.013 | 8.129 x 10-1 |
| 303.15 | 30.0 | 5.084 x 10-4 | 1.013 | 7.264 x 10-1 |
| 310.15 | 37.0 | 4.215 x 10-4 | 1.013 | 6.282 x 10-1 |
| 318.15 | 45.0 | 3.153 x 10-4 | 1.013 | 5.453 x 10-1 |
(a) Calculated by the compiler. (b) Experiments ere done at a total pressure equal to atmospheric pressure. (c) L = Ostwald coefficient [cm3 cm-3].
