SDS Volume (2633)
Volume 62. Carbon Dioxide in Water and Aqueous Electrolyte Solutions, p None
Original Measurements
Lagarote, L.; Bull. Soc. Chim. Fr. 1943, 10, 416-7.
Variables:
Room Temp:
290.15
$\pu{K}$
Amount concentration (2):
C2/mol L-1 = 0 - 2.285
g/L
Prepared by:
Method/Apparatus/Procedure:
A volume $V_{1}$ 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 $\ce{Li2SO4}$ 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 $V_{1}$ at the partial pressure $P_{1}$ of $\ce{CO2}$ was reduced to volume $V^{\prime}_{1}$ at pressure $P$; ($V^{\prime}_{1} = V_{1}P_{1}/P)$.
The solubility coefficient $S_{1}$ of $\ce{CO2}$ was calculated from the equation: $$S_{1} = \frac{(V^{\prime}_{1} - V)}{v}$$
Source and Purity of Materials:
- Nothing specified.
Estimated Errors:
Ambient temperature: Nothing specified.
Components:
- Carbon dioxide, $\ce{ CO2 }$; [124-38-9] NIST WebBook
- Lithium sulfate, $\ce{ Li2SO4 }$; [10377-48-7] NIST WebBook
- Water, $\ce{ H2O }$; [7732-18-5] NIST WebBook
Experimental Data
| $T$ ($\pu{K}$) | $T$ (°C) | $C_{2}$ (mol/L) | $S$ ($\pu{cm3(g) cm-3(s) atm-1}$) | $k_{\rm{D}}$ (g/L) |
|---|---|---|---|---|
| 290.15 | 17 | 0 | 1.02 | - |
| 290.15 | 17 | 0.164 | 0.896 | 0.341 |
| 290.15 | 17 | 0.390 | 0.774 | 0.310 |
| 290.15 | 17 | 0.580 | 0.675 | 0.309 |
| 290.15 | 17 | 1.055 | 0.484 | 0.308 |
| 290.15 | 17 | 1.820 | 0.272 | 0.311 |
| 290.15 | 17 | 2.285 | 0.200 | 0.310 |
(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.
(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.
(a) Calculated by the compiler.
