NIST-IUPAC Solubility Data Series

Carbon dioxide with Potassium chloride, Calcium chloride and Water (IUPAC SDS Volume 62)

SDS Volume

Volume 62. Carbon Dioxide in Water and Aqueous Electrolyte Solutions, p None

Source Publication

Yasunishi, A.; Tsuji, M.; Sada, E.; Adv. Chem. Ser. 1979, 177, 189-203.

Conditions:

Room Temp: 298.15 $\pu{K}$
Pressure: 101.325 $\pu{kPa}$
Amount concentration (2): (C₂ + C₃)/mol dm^-3 = 0 - 3.801 g/L

Compiler:

C.L. Young

Methodology:

Volumetric apparatus with multibulb buret and magnetic stirrer. Amount of solution and gas absorbed determined volumetrically. Partial pressure determined from total pressure and vapor pressure of solution. The vapor pressure of the mixed salt solution estimated by the method of Robinson and Bower [1] from corresponding data for each component salt solution. Apparatus similar to that described in [2].

Sample Information:

Extra pure grade, purity 99.96 mole%.
(2,3) Reagent grade.
Deionized.

Measurement Errors:

Ambient temperature: δT/K = ±0.05
Mass concentration (m/v) (1): δL = ±1%

Methodology Citations

¹ Robinson, R. A.; Bower, V. E.; J. Res. Nat. Bur. Stand. 1965, 69A, 365.
² Tokunaga, J.; J. Chem. Eng. Data 1975, 20, 41.

System Components:

Carbon dioxide, $\ce{ CO2 }$; [124-38-9] NIST WebBook
Potassium chloride, $\ce{ KCl }$; [7447-40-7] NIST WebBook
Calcium chloride, $\ce{ CaCl2 }$; [10043-52-4] NIST WebBook
Water, $\ce{ H2O }$; [7732-18-5] NIST WebBook

Experimental Data

P = 101.325 kPa

$T$ ($\pu{K}$)	$C_{2+3}$ (mol/dm³)	$x_{2}$	$L$
298.15	0	0.00^b	0.8264^a
298.15	0.558	0.00^b	0.6477^a
298.15	1.237	0.00^b	0.4701^a
298.15	2.008	0.00^b	0.3380^a
298.15	2.809	0.00^b	0.2544^a
298.15	3.801	0.00^b	0.1876^a
298.15	0.426	0.25^b	0.7037^a
298.15	0.865	0.25^b	0.6011^a
298.15	1.611	0.25^b	0.4605^a
298.15	2.361	0.25^b	0.3704^a
298.15	3.233	0.25^b	0.2845^a
298.15	0.512	0.50^b	0.7012^a
298.15	1.079	0.50^b	0.6003^a
298.15	1.675	0.50^b	0.5062^a
298.15	2.605	0.50^b	0.3947^a
298.15	3.401	0.50^b	0.3253^a
298.15	0.429	0.75^b	0.7455^a
298.15	0.904	0.75^b	0.6735^a
298.15	1.845	0.75^b	0.5558^a
298.15	2.714	0.75^b	0.4691^a
298.15	3.501	0.75^b	0.4057^a
298.15	0.498	1.00^b	0.7576^a
298.15	0.980	1.00^b	0.7041^a
298.15	1.890	1.00^b	0.6177^a
298.15	2.702	1.00^b	0.5554^a
298.15	3.505	1.00^b	0.5063^a

(a) L = Ostwald coefficient [cm³ cm^-3]

(b) In KCl + CaCl₂ mixed salt.

IUPAC-NIST Solubility Data Series, SRD 106