IUPAC-NIST Solubility Database
NIST Standard Reference Database 106


Glass Ball as Bullet Solubility System: Carbon dioxide with Calcium chloride and Water

Components:
   (1) Calcium chloride; CaCl2; [10043-52-4]  NIST Chemistry WebBook for detail
   (2) Carbon dioxide; CO2; [124-38-9]  NIST Chemistry WebBook for detail
   (3) Water; H2O; [7732-18-5]  NIST Chemistry WebBook for detail

Original Measurements:
   Eremina, A.O.; Efanov, L.N.; Sorokina, N.A. *Zh. Fiz. Khim. 1989, 63, 2491-94; Russ. J. Phys. Chem. (Engl. Transl.) 1989, 63, 1361-63.

Variables:
   Temperature = 298.15 K and 313.15 K
   Pressure = 298.15 K and 313.15 K
   Concentration = 103c2/mol L-1 = 0 - 25

Prepared By:
   Yu. P. Yampol'skii

Experimental Data:   (Subscripts 1,2,3, ..., in column headings refer to components 1,2,3, ...)
  
T/K103 * Concentration C1 [mol/L]Concentration Note103 * Concentration C2 [mol/L]Concentration Note
298.1533.90c0b
298.1533.54c2.3b
298.1533.25c5b
298.1532.92c7.5b
298.1532.58c10b
298.1533.00c12.5b
298.1532.96c13.5b
298.1532.75c15b
298.1532.07c16.25b
298.1531.37c17.5b
298.1529.98c20b
298.1527.16c25b
313.1522.69c0b
313.1522.43c2.5b
313.1522.20c5b
313.1521.95c7.5b
313.1521.69c10b
313.1522.00c12.5b
313.1522.11c15b
313.1521.78c16.25b
313.1521.41c17.5b
313.1520.68c20b
313.1519.21c25b
Notes:
   a  Data taken from a graph by compiler.
   b  S1 = solubility of CO2
   c  c1 = solubility of CO2

Method/Apparatus/Procedure:
   Attainment of the equilibrium was checked by the constancy of CO2 content in 3-5 subsequent samples of gas after saturation of the solution. The concentration of carbon dioxide was determined by titration. Detailed description of the technique is given in Ref. 1.

Source and Purity of Materials:
   (1) Source not given. Before contacting with water solutions CO2 was allowed to pass through the vessels with NaHCO3, glass beads, glass wool, and distilled water.
   (2) Nothing specified.
   (3) Distilled.

Estimated Errors:
   Solubility: δc1/c1 = ± 0.06-0.2 %
   Temperature: δT/K = ± 0.05

References:
   1. Burmakina, G.V.; Efanov, L.N.; Shnet, M.A. *Zh. Fiz. Khim. 1982, 56, 1159; Russ. J. Phys. Chem. (Engl. Transl.) 1982, 56, 705.