SDS Volume (2803)
Volume 62. Carbon Dioxide in Water and Aqueous Electrolyte Solutions, p None
Original Measurements
Salomaa, P.; Vesala, A.; Vesala, S.; Acta Chem. Scand. 1969, 23, 2107-2115.
Variables:
Room Temp:
298.15
$\pu{K}$
Pressure:
101.325
$\pu{kPa}$
mole frac. 2 (l) :
x(D;L2O) = 0.000 - 0.997
Prepared by:
Method/Apparatus/Procedure:
The equipment employed for the solubility measurements on $\ce{CO2}$ was of the Ostwald type [1,2]. Before each measurement, the water was freed from dissolved air by boiling under reflux. The $\ce{CO2}$ which was passed into the absorption apparatus was purified by passing it subsequently through acidic ferric sulfate, iodine, potassium permanganate, and water. The gas was finally dried carefully with magnesium perchlorate.
Source and Purity of Materials:
- From commercial tank.
- Norsk Hydro-Elektrisk Kvaelstofaktieselskab, Norway. Analyzed and purified as described in [3].
- Distilled,degassed.
Estimated Errors:
Mass concentration (m/v) (1): δL ≈ ±0.2% (estimated by compiler)
References
1
Just, G.; Z. Phys. Chem. 1901, 37U, 342-347.
2
Curry, J.; Hazelton, C. L.; J. Am. Chem. Soc. 1938, 60, 2771.
3
Salomaa, P.; Acta Chem. Scand. 1966, 20, 1263.
Components:
- Carbon dioxide, $\ce{ CO2 }$; [124-38-9] NIST WebBook
- Water-d2, $\ce{ D2O }$; [7789-20-0] NIST WebBook
- Water, $\ce{ H2O }$; [7732-18-5] NIST WebBook
Experimental Data
| $T$ ($\pu{K}$) | $x_{2}$ | m1 (mol/kg) | $L$ ($\pu{cm3/cm3}$) | ρ (g/cm3) |
|---|---|---|---|---|
| 298.15 | 0.000 | 0.03377 | 0.8196 | 0.99705 |
| 298.15 | 0.498 | 0.03201 | 0.8189 | 1.05113 |
| 298.15 | 0.833 | 0.03081 | 0.8154 | 1.08743 |
| 298.15 | 0.997 | 0.03029 | 0.8149 | 1.10523 |
(a) Calculated by the compiler.
(b) x(D;L2O) is the deuterium mole fraction of solvent water (L = H, D).
(c) L = Ostwald coefficient
The figure in the parentheses after each L is the number of measurements made in the corresponding solvent composition.
(d) p(L2O) = density of solvent water (L = H, D). Densities were calculated by the compiler using Eq. (5) in the evaluation section.
(e) m1 = molality of carbon dioxide.
(f) Density for pure H2O at 298.15 K was taken from Recommended Reference Materials for the Realization of Physicochemical Properties, Edited by K.N> Marsh, Blackwell, 1987, p. 27.
