IUPAC-NIST Solubilities Database

IUPAC-NIST Solubility Database
NIST Standard Reference Database 106

Solubility System: Carbon dioxide with Water-d2

Components:
   (1) Water-d₂; D2O; [7789-20-0]  NIST Chemistry WebBook for detail
   (2) Carbon dioxide; CO2; [124-38-9]  NIST Chemistry WebBook for detail

Original Measurements:
   Kratochvil, J.; Sobr, J.; Matous, J.; Pick, J., Collect. Czech. Chem. Commun. 1970, 35, 3761-4.

Variables:
   Temperature = 303.15 K to 353.15 K
   Pressure = 0.055 MPa to 3.97 Mpa

Prepared By:
   C.L. Young

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


T/K	Pressure [bar]	10² * Mole Fraction (x₂)
303.15	0.94	0.051
303.15	11.1	0.573
303.15	20.6	0.998
303.15	30.0	1.386
303.15	39.7	1.731
323.15	0.87	0.029
323.15	10.5	0.344
323.15	20.3	0.621
323.15	30.3	0.922
323.15	39.5	1.118
353.15	0.55	0.012
353.15	10.2	0.210
353.15	20.0	0.400
353.15	30.0	0.589
353.15	39.2	0.761

Method/Apparatus/Procedure:
   Cell charged with components, equilibrated and pressure measured with Bourdon gauge. Liquid sampled and analyzed by stripping with nitrogen and absorbing dried carbon dioxide on absorbent containing sodium hydroxide.

Source and Purity of Materials:
   (1) Lachema, Novy Bohumin sample purity better than 99.8 mole %.
   (2) Redistilled sample, purity probably better than 99 mole %. (compiler)

Estimated Errors:
   Solubility: δx₁ = ± 0.2 x 10^-4 (estimated by compiler)
   Temperature: δT/K = ± 0.1 (estimated by compiler)
   Pressure: δP₁/bar = ± 0.5 (estimated by compiler)