SDS Volume
Volume 62. Carbon Dioxide in Water and Aqueous Electrolyte Solutions, p None
Source Publication
Yeh, S-Y.; Peterson, R. E.; J. Pharm. Sci. 1964, 53, 822-4.
Conditions:
Room Temp:
298.15 - 318.15
$\pu{K}$
Pressure:
101.325
$\pu{kPa}$
Mass per 100 g water (2):
102w2 = 0 and 0.9
Compiler:
Methodology:
Freshly boiled solution was introduced into 125 mL absorption flask of solubility apparatus [1], then frozen and boiled under vacuum three times. Water saturated gas was introduced and equilibrated (2) and weight of solution was determined.
Sample Information:
- Research grade. Matheson Co.
- Analytical grade.
- Distilled from glass apparatus.
Measurement Errors:
Ambient temperature: δT/K = 0.05
Mass concentration (m/v) (1): δL/L = 0.01
Pressure: δP/mm Hg = 0.2
Methodology Citations
1
Geffcken, G.; Z. Phys. Chem. 1904, 49U, 257-302.
2
Yeh, S-Y.; Peterson, R. E.; J. Pharm. Sci. 1963, 52, 453-458.
System Components:
- Carbon dioxide, $\ce{ CO2 }$; [124-38-9] NIST WebBook
- Sodium chloride, $\ce{ NaCl }$; [7647-14-5] NIST WebBook
- Water, $\ce{ H2O }$; [7732-18-5] NIST WebBook
Experimental Data
In the original source the ΔH° and ΔS° values were given in the units cal mol-1 and cal K-1, respectively. Conversion to the SI units has been done by the compiler.
| $T$ ($\pu{K}$) | m2 (mol/kg) | w2 | $L$ | $\Delta H$ ($\pu{kJ/mol}$) | ΔS ($\pu{J mol-1 K-1}$) |
|---|---|---|---|---|---|
| 298.15 | 0a,c | 0b | 0.8129d | -20.527e | -97.07e |
| 298.15 | 0.155a,c | 0.9b | 0.7576d | -20.581e | -97.91e |
| 303.15 | 0a,c | 0b | 0.7264d | -19.484e | -93.72e |
| 303.15 | 0.155a,c | 0.9b | 0.6800d | -19.539e | -94.56e |
| 310.15 | 0a,c | 0b | 0.6282d | -18.033e | -89.12e |
| 310.15 | 0.155a,c | 0.9b | 0.5876d | -18.083e | -88.70e |
| 318.15 | 0a,c | 0b | 0.5453d | -16.367e | -83.68e |
| 318.15 | 0.155a,c | 0.9b | 0.5100d | -16.414e | -84.52e |
(a) Calculated by the compiler.
(b) w2 = mass fraction of CaCl2
(c) m2 = molality of NaCl
(d) L = Ostwald coefficient (cm3 cm-3).
Each solubility value is the average of three or four measurements. The standard deviation of each measurement closely approximates 1%.
(e) The thermodynamic changes are for the transfer of 1 mol of CO2 from the gas phase at a concentration of 1 mol dm-3 to the solution at a concentration of 1 mol dm-3.
