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:
   Barton, J. R.; Hsu, C.C., J. Chem. Eng. Data 1971, 16, 93-5.

Variables:
   Temperature = 273.35 K to 313.15 K
   Pressure = 101.325 kPa

Prepared By:
   Pirketta Scharlin

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) [kPa]	α [cm³/cm³ · atm¹]	α Note
0.2	273.35	a	1	101.325	1.699 ± 0.003	b
25	298.15	a	1	101.325	0.758 ± 0.001	b
40	313.15	a	1	101.325	0.530 ± 0.002	b

Notes:
   ^a  Added by the compiler.
   ^b  α = Bunsen coefficient.

Method/Apparatus/Procedure:
   The Ostwald type apparatus used in the measurements was based on the original design of Markham and Kobe (Ref. 1) but also included the modifications suggested by Yeh and McKetta (Ref. 2).

Source and Purity of Materials:
   (1) Matheson Co. The Coleman grade CO₂. Minimum purity of 99.99%.
   (2) Distilled. Refractive index of 1.3332 at 19.5 °C.

Estimated Errors:
   Solubility: δα/α = ± 0.18% at 0.2 °C
± 0.13% at 25°C
± 0.38 % at 40°C
   Temperature: δT/K = ± 0.05; The maximum error in determination of a gas volume was estimated to be ± 0.05 %.

References:
   1. Markham, A. E.; Kobe, K. A., J. Am. Chem. Soc. 1941, 63, 449.
   2. Yen, L.C.; McKetta, J. J., J. Chem. Eng. Data 1962, 7, 288.