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Solubility System: Carbon dioxide with Ammonium sulfate and Water (Original Report)

Components:
(1) Carbon dioxide, CO2; [124-38-9] NIST Chemistry WebBook
(2) Ammonium sulfate, (NH4)2SO4; [7783-20-2] NIST Chemistry WebBook
(3) Water, H2O; [7732-18-5] NIST Chemistry WebBook
Original Measurements
Gerecke, J. ; Diss. Dr. rer. Nat. 1969, Hochsch. "Carl Schorlemmer", Leuna-Merseburg, DDR.

Variables:
Temperature: 288.15 K - 333.15 K
Pressure: 101.325 kPa
Concentration: c2/mol dm-3 = 0 - 2
Prepared By:
D.M. Mason
Experimental Data:
T (K)T (°C)c2 (mol/dm3)α [Note: a]S [Note: b]
288.151500.99-
288.15150.250.9150.928
288.15150.50.8250.85
288.151510.6480.688
288.151520.4770.548
293.152000.86-
293.15200.250.8110.823
293.15200.50.7380.761
293.152010.5740.611
293.152020.4240.4875
298.152500.7580.5173
298.15250.250.7180.7295
298.15250.50.6690.69
298.152510.5150.549
298.152520.3740.431
303.153000.671-
303.15300.250.6340.645
303.15300.50.5790.598
303.153010.4650.4965
303.153020.3310.383
308.153500.605-
308.15350.250.5640.574
308.15350.50.5160.533
308.153510.4090.4375
308.153520.2960.3425
313.154000.546-
313.15400.250.5020.512
313.15400.50.4610.477
313.154010.3620.388
313.154020.2620.3035
318.154500.482-
318.15450.250.4480.4575
318.15450.50.4090.4245
318.154510.3270.351
318.154520.2410.2793
323.155000.436-
323.15500.250.3960.405
323.15500.50.3680.383
323.1550102990.3215
323.155020.2150.25
328.155500.392-
328.15550.250.3560.3645
328.15550.503340.348
328.155510.2720.2927
328.155520.1890.22
333.156000.372-
333.15600.250.3230.331
333.15600.50.3080.321
333.156010.2520.273
333.156020.1750.2043

a) α = Bunsen coefficient [cm3 (STP) cm-3 atm-1].
b) S = Kuenen coefficient [cm3 (STP) g-1 (H2O) 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 coefficent, 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.

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