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

Components:
(1) Carbon dioxide, CO2; [124-38-9] NIST Chemistry WebBook
(2) Sodium sulfate, Na2SO4; [7757-82-6] 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 - 1
Prepared By:
D.M. Mason
Experimental Data:
Table 1
T (K)T (°C)c2 (mol/dm3)α (a)S (b)
288.151500.99-
288.15150.250.780.784
288.15150.50.6950.702
288.151510.5450.5575
293.152000.86-
293.15200.250.6720.676
293.15200.50.6110.618
293.152010.4670.479
298.152500.7580.5173
298.15250.250.5770.582
298.15250.50.5270.534
298.152510.4110.422
303.153000.671-
303.15300.250.5010.5055
303.15300.50.4640.4705
303.153010.3610.372
308.153500.605-
308.15350.250.4390.4435
308.15350.50.4090.415
308.153510.3260.3365
313.154000.546-
313.15400.250.3910.395
313.15400.50.3560.362
313.154010.2860.296
318.154500.482-
318.15450.250.3450.349
318.15450.50.3160.3215
318.154510.2520.261
323.155000.436-
323.15500.250.3110.315
323.15500.50.2820.287
323.155010.2260.234
328.155500.392-
328.15550.250.2780.282
328.15550.50.2530.258
328.155510.20.2075
333.156000.372-
333.156010.1810.188

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 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.

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