Components:
(1) Carbon dioxide,
CO2; [124-38-9]
NIST WebBook
(2) Copper sulfate,
CuSO4; [7758-98-7]
NIST WebBook
(3) Water,
H2O; [7732-18-5]
NIST WebBook
Original Measurements
Vázquez, G.; Chenlo, F.; Pereira, G.; Afinidad 1994, 51, (No. 453) 369-74.
Variables:
Ambient temperature: 298.1 K
Pressure: 1.013 bar
Mass density: γ2/g L-1 = 0 - 160
Prepared by:
Method/Apparatus/Procedure:
The apparatus is a combination of previous designs (Refs 1 and 2). It was modified to achieve a more accurate determination of the volume of the absorbent liquid. The apparatus measures the volume of absorbed gas as the volume of mercury that must be supplied to the system in order to restore the initial pressure.
The raw solubility data obtained are gas/ liquid volume ratios. A detailed description of apparatus, method and procedure is given in Ref. 3.
Source and Purity of Materials:
- Commercial, purity 99.5 mole%.
- No details given.
- Distilled and degassed.
Estimated Errors:
Ambient temperature: δT/K = ±0.1
Mass concentration (m/v) (1): δc1/c1 < ±1% [estimated by compiler (PS) on the basis of the information in Ref. 3]
Pressure: δP/bar = ±0.001
References
1
Alvarez, J. R.; Fernandez, A.; Coll, A., Ing. Quim. 1984, 16, 67.
2
Haimour, N.M.; J. Chem. Eng. Data 1990, 35, 177.
3
Vázquez, G.; Chenlo, F.; Pereira, G.; Peaguda, J.; J. Chem. Eng. Data 1994, 39, 639.
Experimental Values:
Note: The authors also report values for viscosity μ:γ2/g L-1
0 40 80 120 160
μ/mPa s
0.890 1.028 1.217 1.431 1.664
| T (K) | C2 (mol/L) | L | ρ (g/L) | C1 (mol/dm3) | Cm1 (g/dm3) |
|---|---|---|---|---|---|
| 298.1 | 0.0 | 8.14 x 10-1 | 997.0 | 3.33 x 10-2 | 0.0 |
| 298.1 | 2.51 x 10-1 | 6.73 x 10-1 | 1040.1 | 2.75 x 10-2 | 40.0 |
| 298.1 | 5.01 x 10-1 | 5.82 x 10-1 | 1079.9 | 2.38 x 10-2 | 80.0 |
| 298.1 | 7.52 x 10-1 | 5.09 x 10-1 | 1118.4 | 2.08 x 10-2 | 120.0 |
| 298.1 | 1.002 | 4.43 x 10-1 | 1156.2 | 1.81 x 10-2 | 160.0 |
(a) γ2 = mass concentration of CuSO4 (b) c2 = concentration of CuSO4; Calculated by the compiler. (c) p = density of aqueous CuSO4 solution (d) c1 = solubility of CO2 (e) L = Ostwald coefficient [cm3 cm-3]; calculated by the compiler (PS) (ideal gas behavior assumed)
