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IUPAC-NIST Solubility Database
NIST Standard Reference Database 106
Solubility System:
Carbon dioxide with Hydrated ferric oxide and Water
Components:
(1) Hydrated ferric oxide; Fe2O3·xH2O; [12259-21-1]
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:
Shkol'nikova, R.I., Uch. Zap. Leningr. Gos. Unov., Ser. Khim. Nauk. 1959, Nr. 18, 64-86., Chem. Abstr. 1961, 55, 25443b.
Variables:
Temperature = 293.15 K to 313.15 K
Pressure = 101.325 kPa
Concentration = 10
2
w
2
= 0 - 0.8
Prepared By:
H.L. Clever; A.L. Cramer
Experimental Remarks:
The enthalpy of solution of CO
2
from the temperature coefficient of the Bunsen coefficient is 23.640 kJ mol
-1
(5650 cal mol
-1
) in water and 18.577 kJ mol
-1
(4440 cal mol
-1
),18.912 kJ mol
-1
(4520 cal mol
-1
), and 18.326 kJ mol
-1
(4380 cal mol
-1
) for the 0.1, 0.5 and 0.8 mass % Fe
2
O
3
·xH
2
O solution, respectively.
The values for the solubility of CO
2
in water were not given in the paper.
Fe
2
O
3
·xH
2
O is described as a sol (colloidal).
Experimental Data:
(Subscripts 1,2,3, ..., in column headings refer to components 1,2,3, ...)
T/K
Mass Fraction (w
2
)
w2 Note
10
3
* α
α Note
293.15
0.1
a
763.1
b
303.15
0.1
a
592.0
b
313.15
0.1
a
469.1
b
293.15
0.5
a
797.0
b
303.15
0.5
a
616.0
b
313.15
0.5
a
482.0
b
293.15
0.82
a
809.0
b
303.15
0.82
a
635.0
b
313.15
0.82
a
495.0
b
Notes:
a
w
2
= mass fraction of component 2.
b
α = Bunsen coefficient [cm
3
(STP) cm
-3
atm
-1
].
Method/Apparatus/Procedure:
The apparatus and procedure of Lannung were modified (Ref. 1).
Source and Purity of Materials:
(1) Source not given. Stated to be 99.98 %.
(2) No information.
(3) No information.
Estimated Errors:
Temperature: Not given.
References:
1. Lannung, A., J. Am. Chem. Soc. 1930, 52, 68.