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

Components:
(1) Carbon dioxide, CO2; [124-38-9] NIST Chemistry WebBook
(2) Sodium iodide, NaI; [7681-82-5] 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 - 4
Prepared By:
D.M. Mason
Experimental Data:
Table 1
T (K)T (°C)c2 (mol/dm3)α (a)S (b)
288.151500.99-
288.15150.50.8580.875
288.151510.8140.844
288.151520.6610.713
288.151540.470.553
293.152000.86-
293.15200.50.7660.781
293.152010.7270.756
293.152020.5870.634
293.152040.4180.493
298.152500.7580.5173
298.15250.50.6940.709
298.152510.6420.668
298.152520.5220.566
298.152540.3740.4425
303.153000.671-
303.15300.50.6270.641
303.153010.5650.59
303.153020.4580.497
303.153040.3260.387
308.153500.605-
308.15350.50.570.584
308.153510.4980.521
308.153520.4090.445
308.153540.3080.366
313.154000.546-
313.15400.50.5130.5265
313.154010.4450.4655
313.154020.3690.402
313.154040.3030.3612
318.154500.482-
318.15450.50.4650.478
318.154510.4080.428
318.154520.3270.357
318.154540.2920.3495
323.155000.436-
323.15500.50.430.443
323.155010.3670.386
323.155020.2940.322
323.155040.2880.3455
328.155500392-
328.15550.50.3950.407
328.155510.3340.3516
328.155520.2690.295
328.155540.2840.34
333.156000.372-
333.15600.50.3660.378
333.156010.3070.324
333.156020.2440.268
333.156040.290.35

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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