SDS Volume (2729)
Volume 62. Carbon Dioxide in Water and Aqueous Electrolyte Solutions, p None
Original Measurements
Onda, K.; Sada, E.; Kobayashi, T.; Kito, S.; Ito, K.; J. Chem. Eng. Jpn. 1970, 3, 18-24.
Variables:
Room Temp:
298.15
$\pu{K}$
Pressure:
101.325
$\pu{kPa}$
Amount concentration (2):
C2/mol dm-3 = 1.003 - 2.002
g/L
Prepared by:
Method/Apparatus/Procedure:
Solutions were made up by weight. Concentration of each solution was verified by measuring the density. (Density was not reported in paper.) A measured volume of gas was brought into contact with a measured quantity of gas-free solvent. Equilibrium was established by agitation using a magnetic stirrer. The volume of remaining gas was measured. The amount of gas absorbed was estimated from change in volume of gas. Details in original paper.
Source and Purity of Materials:
- From commercial cylinder. Purity 99.8%.
- Analytical grade.
- Distilled and degassed.
Estimated Errors:
Ambient temperature: δT/K = ±0.2 (estimated by the compiler)
Mass concentration (m/v) (1): δα = ±2% (estimated by the compiler)
Components:
- Carbon dioxide, $\ce{ CO2 }$; [124-38-9] NIST WebBook
- Potassium iodide, $\ce{ KI }$; [7681-11-0] NIST WebBook
- Water, $\ce{ H2O }$; [7732-18-5] NIST WebBook
Experimental Data
P = 1 atm = 101.325 kPa = 1.01325 bar
| $T$ ($\pu{K}$) | $C_{2}$ (mol/dm3) | $L$ | α ($\pu{cm3(g) cm-3(l) atm-1}$) |
|---|---|---|---|
| 298.15 | 0 | 0.8290 | 0.7595 |
| 298.15 | 1.003 | 0.7248 | 0.6640 |
| 298.15 | 2.002 | 0.6523 | 0.5976 |
(a) α = Bunsen coefficient [cm3 (STP) cm-3 atm-1].
(b) L = Ostwald coefficient [cm3 cm-3]
(c) Calculated by the compiler.
