IUPAC-NIST Solubility Database
NIST Standard Reference Database 106

Glass Ball as Bullet Solubility System: Carbon dioxide with Copper sulfate and Water

   (1) Copper sulfate; CuSO4; [7758-98-7]  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:
   Vázquez, G.; Chenlo, F.; Pereira, G., Afinidad 1994, 51, (No. 453) 369-74.

   Temperature = 298.1 K
   Pressure = 298.1 K
   Concentration = γ2/g L-1 = 0 - 160

Prepared By:
   Pirketta Scharlin; Rosa Crovetto

Experimental Remarks:

   The authors also report values for viscosity μ:

γ2/g L-1
0          40          80          120          160
μ/mPa s
0.890    1.028    1.217    1.431    1.664

Experimental Data:   (Subscripts 1,2,3, ..., in column headings refer to components 1,2,3, ...)

T/KDensity ρ [kg/m3]Density NoteOstwald coefficient LOstwald NoteConcentration C1 [mol/dm3]Concentration NoteConcentration C2 [mol/L]Concentration Noteγ [g/L]γ Note
   a  γ2 = mass concentration of CuSO4
   b  c2 = concentration of CuSO4; Calculated by the compiler.
   c  p = density of aqueous CuSO4 solution
   d  c1 = solubility of CO2
   e  L = Ostwald coefficient [cm3 cm-3]; calculated by the compiler (PS) (ideal gas behavior assumed)

   The apparatus is a combination of previous designs (Refs 1 and 2). It was modified to achieve a more accurate determination of the volume of the absorbent liquid. The apparatus measures the volume of absorbed gas as the volume of mercury that must be supplied to the system in order to restore the initial pressure.
The raw solubility data obtained are gas/ liquid volume ratios. A detailed description of apparatus, method and procedure is given in Ref. 3.

Source and Purity of Materials:
   (1) Commercial, purity 99.5 mole %.
   (2) No details given.
   (3) Distilled and degassed.

Estimated Errors:
   Solubility: δc1/c1 < ± 1 % [estimated by compiler (PS) on the basis of the information in Ref. 3]
   Temperature: δT/K = ± 0.1
   Pressure: δP/bar = ± 0.001

   1. Alvarez, J.R.; Fernandez, A.; Coll, A. Ing. Quim. 1984, 16, 67.
   2. Haimour, N., J. Chem. Eng. Data 1990, 35, 177.
   3. Vazquez, G.; Chenlo, F.; Pereira, G.; peaguda, J., J. Chem. Eng. Data 1994, 39, 639.