Solubility System: Carbon dioxide with Potassium chloride and Water (Original Report)

Components:
(1) Carbon dioxide, CO2; [124-38-9] NIST Chemistry WebBook
(2) Potassium chloride, KCl; [7447-40-7] 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 - 3
Prepared By:
D.M. Mason
Experimental Data:
Table 1
T (K)T (°C)c2 (mol/dm3)α (a)S (b)
288.151500.99-
288.15150.50.8990.922
288.151510.820.847
288.151520.7360.785
288.151530.680.752
293.152000.86-
293.15200.50.7810.794
293.152010.7140.7405
293.152020.6160.659
293.152030.5750.6375
298.152500.758-
298.15250.50.6930.706
298.152510.6420.6645
298.152520.560.5995
298.152530.5010.556
303.153000.671-
303.15300.50.6060.6175
303.153010.5470.567
303.153020.49550.532
303.153030.4520.502
308.153500.305-
308.15350.50.5250.5363
308.153510.4780.4964
308.153520.4340.467
308.153530.4030.449
313.154000.546-
313.15400.50.4710.482
313.154010.4250.4425
313.154020.3810.4102
313.154030.3410.383
318.154500.482-
318.15450.50.41950.43
318.154510.3810.397
318.154520.3450.372
318.154530.3160.3534
323.155000.436-
323.15500.50.3760.386
323.155010.3370.352
323.155020.3020.3265
323.155030.28250.3166
328.155500.392-
328.15550.50.3330.342
328.155510.3020.3155
328.155520.2710.2936
328.155530.2510.281
333.156000.372-
333.15600.50.3020.3102
333.156010.2720.2844
333.156020.2450.2655
333.156030.2270.254

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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