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IUPAC-NIST Solubility Database
NIST Standard Reference Database 106
Solubility System:
Carbon dioxide with Sulfuric acid and Water
Components:
(1) Sulfuric acid; H2SO4; [7664-93-9]
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:
Geffcken, G., Z. Phys. Chem., Stoechiom. Verwandtschaftsl. 1904, 49, 257-302.
Variables:
Temperature = 288.15 K and 298.15 K
Concentration =
c
2
/mol dm
-3
= 0 - 7.600
Prepared By:
C.L. Young
Experimental Data:
(Subscripts 1,2,3, ..., in column headings refer to components 1,2,3, ...)
T/K
Ostwald coefficient L
Ostwald Note
Concentration C
2
[mol/dm
3
]
288.15
1.070
a
0
288.15
1.016
a
1.024
288.15
1.016
a
1.034
288.15
0.9772
a
1.990
288.15
0.9775
a
2.078
288.15
0.9756
a
2.134
288.15
0.9175
a
3.912
288.15
0.9143
a
4.176
288.15
0.8354
a
7.580
288.15
0.8385
a
7.600
298.15
0.8255
a
0
298.15
0.7923
a
1.024
298.15
0.7936
a
1.034
298.15
0.7693
a
1.990
298.15
0.7985
a
2.078
298.15
0.7672
a
2.134
298.15
0.7302
a
3.912
298.15
0.7273
a
4.176
298.15
0.6736
a
7.580
298.15
0.6747
a
7.600
Notes:
a
L
= Ostwald coefficient (cm
3
cm
-3
)
Method/Apparatus/Procedure:
Volumetric method using simple absorption pipet and buret. Diagram and detailed description given in original paper.
Source and Purity of Materials:
(1) Obtained by the sublimation of solid carbon dioxide. Dried.
(2) Not specified.
(3) Degassed.
Estimated Errors:
Solubility: δ
L
= ± 1% (estimated by the compiler)
Temperature: δ
T
/K = ± 0.1 (estimated by compiler)