IUPAC-NIST Solubilities Database

IUPAC-NIST Solubility Database
NIST Standard Reference Database 106

Solubility System: Carbon dioxide with Ferric hydroxide (colloidal) and Water

Components:
   (1) Ferric hydroxide (colloidal); Fe(OH)3; [1309-33-7]  NIST Chemistry WebBook for detail
   (2) Carbon dioxide; CO2; [124-38-9]  NIST Chemistry WebBook for detail
   (3) Water; H2O; [7732-18-5]  NIST Chemistry WebBook for detail

Original Measurements:
   Findlay, A.; Creighton, H.J.M., J. Chem. Soc. 1910, 97, 536-61.

Variables:
   Temperature = 298.15 K
   Pressure = 99.5 kPa to 180.8 kPa
   Concentration = 10²_γ2/g cm^-3 = 0.569 - 1.661

Prepared By:
   C.L. Young

Experimental Remarks:

   Solubility in water: Ostwald coefficient L = 0.817 cm³ cm^-3

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


T/K	Pressure [bar]	Density ρ [g/cm³]	Keunen coefficient, S	S Note	10² * γ [g/cm³]	γ Note
298.15	1.000	1.000	0.848	b	0.569	a
298.15	1.128	1.000	0.843	b	0.569	a
298.15	1.237	1.000	0.841	b	0.569	a
298.15	1.353	1.000	0.842	b	0.569	a
298.15	1.528	1.000	0.845	b	0.569	a
298.15	1.808	1.000	0.846	b	0.569	a
298.15	1.000	1.003	0.862	b	0.854	a
298.15	1.129	1.003	0.858	b	0.854	a
298.15	1.231	1.003	0.856	b	0.854	a
298.15	1.387	1.003	0.857	b	0.854	a
298.15	1.645	1.003	0.860	b	0.854	a
298.15	1.763	1.003	0.861	b	0.854	a
298.15	0.995	1.005	0.886	b	1.277	a
298.15	1.121	1.005	0.881	b	1.277	a
298.15	1.313	1.005	0.880	b	1.277	a
298.15	1.428	1.005	0.878	b	1.277	a
298.15	1.511	1.005	0.878	b	1.277	a
298.15	1.675	1.005	0.887	b	1.277	a
298.15	0.996	1.009	0.904	b	1.661	a
298.15	1.108	1.009	0.901	b	1.661	a
298.15	1.224	1.009	0.896	b	1.661	a
298.15	1.336	1.009	0.900	b	1.661	a
298.15	1.533	1.009	0.900	b	1.661	a
298.15	1.689	1.009	0.902	b	1.661	a

Notes:
   ^a  γ₂ = mass concentration of ferric hydroxide
   ^b  S = concentration of gas in liquid phase/concentration of gas in gaseous phase

Method/Apparatus/Procedure:
   Gas burette and absorption pipette similar to that of Geffcken (Ref. 1) except that the manometer tube was longer to give higher pressures. Concentration of ferrous hydroxide determined by precipitation with ammonium sulfate.

Source and Purity of Materials:
   (1) Purity 99.42 mole %.
   (2) Ferric hydroxide solution was prepared by the method of Noyes (Ref. 2). And dialysed.
   (3) Nothing specified.

Estimated Errors:
   Solubility: δS = ± 0.25 %
   Temperature: δT/K = ± 0.1

References:
   1. Geffcken, G., Z. Phys. Chem., Stoechiom. Verwandtschaftsl. 1904, 49, 257-302.
   2. Noyes, A. A., J. Am. Chem. Soc. 1905, 37, 94.