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:
   Bartels, H; Wrbitzky, R., Pflügers Arch. 1960, 271, 162-8.

Variables:
   Temperature = 288.15 K to 311.15 K
   Pressure = "atmospheric"

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	No.	Note	α [cm³ (STP) /cm³ · atm¹]	α Note
15	288.15	a	8	c	0.9891 ± 0.006	b
20	293.15	a	8	c	0.8533 ± 0.003	b
25	298.15	a	5	c	0.7431 ± 0.004	b
30	303.15	a	8	c	0.6483 ± 0.014	b
35	308.15	a	5	c	0.5796 ± 0.004	b
38	311.15	a	11	c	0.5439 ± 0.003	b

Notes:
   ^a  Added by the compiler.
   ^b  α = Bunsen coefficient. The values given are mean values of several measurements. The error is standard deviation.
   ^c  Number of measurements.

Method/Apparatus/Procedure:
   Water was saturated with CO₂ in rotating tonometer. The technique is described in Ref. 1.
The CO₂ contents of the equilibrated solutions was determined in the manometric gas apparatus (Ref. 2).

Source and Purity of Materials:
   (1) From cylinder; purity 99.8 %.
   (2) Distilled.

Estimated Errors:
   Solubility: 0.004 < absolute value of δα/α < 0.02
   Temperature: δT/K = ± 0.1

References:
   1. Laue, D. Pflügers Arch. ges. Physiol. 1951, 254, 142.
   2. Van Slyke, D. D.; Sendroy, J., Jr.; Hastings A. B.; Neill, J.M., J. Biol. Chem. 1928, 78, 765.