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:
   Koch, H. A.; Stutzman, L.F.; Blum, H.A.; Hutchings, L.E., Chem. Eng. Prog. 1949, 45(11), 677-82.

Variables:
   Temperature = 291.45 K to 295.05 K
   Pressure = 12.46 kPa to 17.63 kPa

Prepared By:
   Rosa Crovetto

Experimental Remarks:

   Also, gas-liquid transfer coefficents were determined and they are given in the original paper.
Only equilibrium values are given here.

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


t/°C	T/K	Temp Note	Pressure [atm]	Pressure (compiler) [bar]	Mole Fraction (x₁)	x₁ Note	Mole Fraction of Gas (y₁)	y₁ Note
21.7	294.85	a	0.135	0.163	1.000	c	0.1461	b
20.5	293.65	a	0.151	0.177	1.261	c	0.1514	b
18.3	291.45	a	0.123	0.145	0.9930	c	0.1230	b
21.7	294.85	a	0.152	0.180	1.045	c	0.1569	b
21.9	295.05	a	0.148	0.176	1.172	c	0.1490	b
21.1	294.25	a	0.174	0.202	1.263	c	0.1781	b

Notes:
   ^a  Calculated by the compiler.
   ^b  Mole fraction of CO₂ in gas phase.
   ^c  Mole fraction of CO₂ in liquid phase.

Method/Apparatus/Procedure:
   Equilibration was obtained by flowing the gas through a column of water packed with Raschig rings.

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

Estimated Errors:
   Solubility: δx = ± 3 % (estimated by compiler)