Components:
(1) Carbon dioxide,
CO2; [124-38-9]
NIST WebBook
(2) Lithium sulfate,
Li2SO4; [10377-48-7]
NIST WebBook
(3) Water,
H2O; [7732-18-5]
NIST WebBook
Original Measurements
Lagarote, L.; Bull. Soc. Chim. Fr. 1943, 10, 416-7.
Variables:
Ambient temperature: 290.15 K
Amount concentration (2): C2/mol L-1 = 0 - 2.285
Prepared by:
Method/Apparatus/Procedure:
A volume V1 of carbon dioxide, saturated with water vapor, was introduced into Bunte's burette under atmospheric pressure and at the temperature of 17°C. A volume v of aqueous Li2SO4 solution of known concentration was then introduced, and the mixture was stirred until no diminution of volume was observed. When the initial temperature was reached, the volume V was read under the pressure P. The volume V1 at the partial pressure P1 of CO2 was reduced to volume V'1 at pressure P; (V'1 = V1P1/P).
The solubility coefficient S1 of CO2 was calculated from the equation:
S1= (V'1 - V)/ v
Source and Purity of Materials:
- Nothing specified.
Estimated Errors:
Ambient temperature: Nothing specified.
Experimental Values:
| T (K) | T (°C) | C2 (mol/L) | β (cm3(g) cm-3(s) atm-1) | H (g/L) |
|---|---|---|---|---|
| 290.15 | 17.0 | 0.0 | 1.02 | - |
| 290.15 | 17.0 | 1.64 x 10-1 | 8.96 x 10-1 | 3.41 x 10-1 |
| 290.15 | 17.0 | 3.90 x 10-1 | 7.74 x 10-1 | 3.10 x 10-1 |
| 290.15 | 17.0 | 5.80 x 10-1 | 6.75 x 10-1 | 3.09 x 10-1 |
| 290.15 | 17.0 | 1.055 | 4.84 x 10-1 | 3.08 x 10-1 |
| 290.15 | 17.0 | 1.82 | 2.72 x 10-1 | 3.11 x 10-1 |
| 290.15 | 17.0 | 2.285 | 2.00 x 10-1 | 3.10 x 10-1 |
(a) Calculated by the compiler.
(b) S1 = solubility coefficient of CO2.
S1 = (V'1 - V) / v, where (V'1 - V) is the volume of CO2 dissolved at pressure P, and v is the volume of the aqueous Li2SO4 solution.
The paper contained no definitive information about the pressure P. The measurements probably were made at atmospheric pressure.
(c) k = Sechenov constant, defined by equation lg (So/S1) = kc2, where So and S1 are the solubility coefficients of CO2 in pure water and in Li2SO4 solution, respectively, and c2 is the concentration of Li2SO4 in the aqueous Li2SO4 solution.
