IUPAC-NIST Solubilities Database

IUPAC-NIST Solubility Database
NIST Standard Reference Database 106

Solubility System: Carbon dioxide with Water

Components:
   (1) Carbon dioxide; CO2; [124-38-9]  NIST Chemistry WebBook for detail
   (2) Water; H2O; [7732-18-5]  NIST Chemistry WebBook for detail

Original Measurements:
   Hantzsch, A.; Vagt, A., Z. Phys. Chem. 1901, 38, 705-42.

Variables:
   Temperature = 273.15 K to 363.15 K

Prepared By:
   Rosa Crovetto

Experimental Remarks:

   Although not stated, the compiler assumes the total pressure was 1 atm.

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


t/°C	T/K	Temp Note	10³ * Concentration C₁ [mol/L]	Concentration Note	10³ * Concentration C₂ [mol/L]	Concentration Note
0	273.15	a	8.05	b (liquid)	4.08	c (air)
10	283.15	a	6.86	b (liquid)	4.96	c (air)
20	293.15	a	4.68	b (liquid)	4.27	c (air)
30	303.15	a	3.59	b (liquid)	4.18	c (air)
40	313.15	a	3.05	b (liquid)	4.16	c (air)
50	323.15	a	2.68	b (liquid)	4.27	c (air)
70	343.15	a	1.68	b (liquid)	3.72	c (air)
90	363.15	a	1.23	b (liquid)	3.27	c (air)

Notes:
   ^a  Calculated by the compiler.
   ^b  c₁^liq = concentration of CO₂ (mol L^-1) in the liquid.
   ^c  c₁^air = concentration of CO₂ (mol L^-1) in air.
   ^d  ratio = quotient of concentrations.

Method/Apparatus/Procedure:
   An all-glass apparatus was used. Good stirring was provided during equilibration.
The authors measured the concentration of CO₂ in both phases at equilibrium. They give the distribution coefficient as the volume ratio.
The authors also give data for the distribution coefficient of amines in water and in different solvents.

Source and Purity of Materials:
   (1) Not stated
   (2) Not stated

Estimated Errors:

   Temperature: Not given.