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IUPAC-NIST Solubility Database
NIST Standard Reference Database 106
Solubility System:
Carbon dioxide with Sodium sulfate and Water
Components:
(1) Sodium sulfate; Na2SO4; [7757-82-6]
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:
Gerecke, J., Diss. Dr. rer. Nat. 1969, Hochsch. "Carl Schorlemmer", Leuna-Merseburg, DDR.
Variables:
Temperature = 288.15 K to 333.15 K
Pressure = 101.325 kPa
Concentration =
c
2
/mol dm
-3
= 0 - 1
Prepared By:
D.M. Mason
Experimental Data:
(Subscripts 1,2,3, ..., in column headings refer to components 1,2,3, ...)
t/°C
T/K
Concentration C
2
[mol/dm
3
]
Keunen coefficient, S
S Note
α
α Note
15
288.15
0
-
b
0.990
a
15
288.15
0.25
0.784
b
0.780
a
15
288.15
0.5
0.702
b
0.695
a
15
288.15
1
0.5575
b
0.545
a
20
293.15
0
-
b
0.860
a
20
293.15
0.25
0.676
b
0.672
a
20
293.15
0.5
0.618
b
0.611
a
20
293.15
1
0.479
b
0.467
a
25
298.15
0
0.5173
b
0.758
a
25
298.15
0.25
0.582
b
0.577
a
25
298.15
0.5
0.534
b
0.527
a
25
298.15
1
0.422
b
0.411
a
30
303.15
0
-
b
0.671
a
30
303.15
0.25
0.5055
b
0.501
a
30
303.15
0.5
0.4705
b
0.464
a
30
303.15
1
0.372
b
0.361
a
35
308.15
0
-
b
0.605
a
35
308.15
0.25
0.4435
b
0.439
a
35
308.15
0.5
0.415
b
0.409
a
35
308.15
1
0.3365
b
0.326
a
40
313.15
0
-
b
0.546
a
40
313.15
0.25
0.395
b
0.391
a
40
313.15
0.5
0.362
b
0.356
a
40
313.15
1
0.296
b
0.286
a
45
318.15
0
-
b
0.482
a
45
318.15
0.25
0.349
b
0.345
a
45
318.15
0.5
0.3215
b
0.316
a
45
318.15
1
0.261
b
0.252
a
50
323.15
0
-
b
0.436
a
50
323.15
0.25
0.315
b
0.311
a
50
323.15
0.5
0.287
b
0.282
a
50
323.15
1
0.234
b
0.226
a
55
328.15
0
-
b
0.392
a
55
328.15
0.25
0.282
b
0.278
a
55
328.15
0.5
0.258
b
0.253
a
55
328.15
1
0.2075
b
0.200
a
60
333.15
0
-
b
0.372
a
60
333.15
1
0.188
b
0.181
a
Notes:
a
α = Bunsen coefficient [cm
3
(STP) cm
-3
atm
-1
].
b
S
= Kuenen coefficient [cm
3
(STP) g
-1
(H
2
O) atm
-1
].
Method/Apparatus/Procedure:
The principle of the Ostwald method was used in which a measured volume of gas-free liquid is stirred in the presence of the gas, and its decrease in volume is measured in a burette over mercury. The volume of liquid was measured at the experimental temperature. For calculation of the Kuenen coefficient, the density of the solution was obtained from Landolt-Börnstein extant 1969. The molar concentration of salt in the liquid was standardized at 20 °C. These data are analyzed and discussed further in Ref. 1.
Source and Purity of Materials:
(1)VEB Leuna Works; 99.8 vol %; the impurity was mostly water (author).
(2) DDR pro analysis grade by DDR Standard TGL 5021.
(3) Double distilled.
Estimated Errors:
Temperature: Not given.
References:
1. Gerecke, J.; Bittrich, H.J., Wiss. Z. Tech. Hochsch. Chem. "Carl Schorlemmer" Leuna-Merseburg 1971, 13(2), 115-22.