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IUPAC-NIST Solubility Database
NIST Standard Reference Database 106
Solubility System:
Carbon dioxide with Ammonium sulfate and Water
Components:
(1) Ammonium sulfate; (NH4)2SO4; [7783-20-2]
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:
Yasunishi, A.; Yoshida, F., J. Chem. Eng. Data 1979, 24, 11-14.
Variables:
Temperature = 288.15 K to 308.15 K
Pressure = 288.15 K to 308.15 K
Concentration =
c
2
/mol L
-1
= 0 - 3.867
Prepared By:
C.L. Young
Experimental Remarks:
P = 1 atm = 101.325 kPa = 1.01325 bar
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/L]
288.15
1.0634
a
0
288.15
0.9174
a
0.322
288.15
0.7830
a
0.690
288.15
0.6903
a
0.993
288.15
0.5764
a
1.442
288.15
0.4930
a
1.838
288.15
0.4085
a
2.360
288.15
0.3575
a
2.766
288.15
0.3228
a
3.106
288.15
0.3042
a
3.349
298.15
0.8264
a
0
298.15
0.7378
a
0.253
298.15
0.6572
a
0.219
298.15
0.5794
a
0.845
298.15
0.4978
a
1.235
298.15
0.4529
a
1.474
298.15
0.3852
a
1.836
298.15
0.3622
a
2.089
298.15
0.3161
a
2.486
298.15
0.2802
a
2.873
298.15
0.2465
a
3.351
298.15
0.2495
a
3.358
308.15
0.6675
a
0
308.15
0.5974
a
0.276
308.15
0.5194
a
0.611
308.15
0.4468
a
1.011
308.15
0.3961
a
1.324
308.15
0.3508
a
1.669
308.15
0.3145
a
1.965
308.15
0.3009
a
2.090
308.15
0.2507
a
22.703
308.15
0.2415
a
2.825
308.15
0.2198
a
3.195
308.15
0.1865
a
3.867
Notes:
a
L
= Ostwald coefficient [cm
3
cm
-3
]
Method/Apparatus/Procedure:
Volumetric apparatus with multibulb buret and magnetic stirrer. Amount of solution and gas absorbed determined volumetrically. Density and composition of solution determined after absorption. Details in Ref. 1.
Source and Purity of Materials:
(1) High purity grade sample, purity 99.96 mole %.
(2,3) Guaranteed reagent, solution degassed by boiling.
Estimated Errors:
Solubility: δ
L
= ± 1 %
Temperature: δ
T
/K = ± 0.05
References:
1. Tokunaga, J., J. Chem. Eng. Data 1975, 20, 41.