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:
   Yeh, S-Y.; Peterson, R.E., J. Pharm. Sci. 1964, 53, 822-4.

Variables:
   Temperature = 298.15 K to 318.15
   Pressure = 101.325 kPa

Prepared By:
   Rosa Crovetto

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


t/°C	T/K	Temp Note	Pressure [bar]	Pressure Note	Pressure [bar]	Pressure Note	Ostwald coefficient L	Ostwald Note	Mole Fraction (x₁)	x₁ Note
25	298.15	a	1.013	b	0.982	a	0.8129	c	5.842	a
30	303.15	a	1.013	b	0.971	a	0.7264	c	5.084	a
37	310.15	a	1.013	b	0.950	a	0.6282	c	4.215	a
45	318.15	a	1.013	b	0.917	a	0.5453	c	3.153	a

Notes:
   ^a  Calculated by the compiler.
   ^b  Experiments ere done at a total pressure equal to atmospheric pressure.
   ^c  L = Ostwald coefficient [cm³ cm^-3].

Method/Apparatus/Procedure:
   The method and apparatus used are described in Ref. 1 with two minor modifications: the mercury sealing cup was eliminated in the new version and the gas was presaturated with water vapor.

Source and Purity of Materials:
   (1) Research grade Matheson Co. Minimum purity 99.7 %.
   (2) Redistilled from all glass still. Degassed.

Estimated Errors:
   Solubility: δL = ± 1 % (authors)
   Temperature: δT/K = ± 0.05
   Pressure: δP/mmHg = ± 2
(δP/bar = ± 0.003)

References:
   1. Yeh, S-Y.; Peterson, R.E., J. Pharm. Sci. 1963, 53, 453-6.