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

Variables:
Temperature: 348.65 K - 394.15 K
Pressure: 1.52 MPa - 88.6 Mpa
Concentration: 102w2 = 10.1 - 30.2
Prepared By:
D.M. Mason
Experimental Data:
Table 1
T (K)T (°C)w2 (a)x1 (b)P (atm)
348.6575.510.1 x 10-22.6 x 10-316
348.6575.510.1 x 10-22.7 x 10-316
348.6575.510.1 x 10-28.1 x 10-362
348.6575.510.1 x 10-28.3 x 10-363
348.6575.510.1 x 10-213.3 x 10-3162
348.6575.510.1 x 10-213.3 x 10-3163
348.6575.510.1 x 10-215.4 x 10-3310
348.6575.510.1 x 10-215.8 x 10-3328
348.6575.510.1 x 10-217.0 x 10-3426
348.6575.510.1 x 10-216.8 x 10-3446
348.6575.510.1 x 10-218.4 x 10-3585
348.6575.510.1 x 10-219.2 x 10-3620
349.157620.2 x 10-22.2 x 10-322
349.157620.2 x 10-22.2 x 10-323
349.157620.2 x 10-25.8 x 10-373
349.157620.2 x 10-26.0 x 10-373
349.157620.2 x 10-28.8 x 10-3165
349.157620.2 x 10-28.6 x 10-3166
349.157620.2 x 10-29.7 x 10-3282
349.157620.2 x 10-29.8 x 10-3290
349.157620.2 x 10-210.7 x 10-3454
349.157620.2 x 10-210.8 x 10-3460
349.157620.2 x 10-211.7 x 10-3572
349.157620.2 x 10-211.8 x 10-3600
349.157630.2 x 10-20.000915
349.157630.2 x 10-23.6 x 10-373
349.157630.2 x 10-23.7 x 10-374
349.157630.2 x 10-25.2 x 10-3161
349.157630.2 x 10-25.1 x 10-3163
349.157630.2 x 10-26.0 x 10-3314
349.157630.2 x 10-26.1 x 10-3319
349.157630.2 x 10-26.7 x 10-3431
349.157630.2 x 10-26.6 x 10-3455
349.157630.2 x 10-27.0 x 10-3525
349.157630.2 x 10-27.0 x 10-3554
349.157630.2 x 10-26.9 x 10-3625
374.15101010.8 x 10-357
374.15101015.0 x 10-3107
374.15101015.3 x 10-3109
374.15101020.5 x 10-3210
374.15101020.7 x 10-3212
374.15101022.5 x 10-3283
374.15101022.1 x 10-3290
374.15101023.3 x 10-3320
374.15101023.1 x 10-3325
374.15101025.3 x 10-3443
374.15101025.1 x 10-3452
374.15101026.6 x 10-3518
374.15101027.8 x 10-3558
374.15101028.2 x 10-3615
374.1510110.1 x 10-22.1 x 10-317
374.1510110.1 x 10-22.2 x 10-317
374.1510110.1 x 10-28.1 x 10-356
374.1510110.1 x 10-211.2 x 10-3120
374.1510110.1 x 10-211.3 x 10-3120
374.1510110.1 x 10-213.5 x 10-3213
374.1510110.1 x 10-214.0 x 10-3213
374.1510110.1 x 10-214.7 x 10-3286
374.1510110.1 x 10-215.2 x 10-3286
374.1510110.1 x 10-216.2 x 10-3347
374.1510110.1 x 10-215.9 x 10-3352
374.1510110.1 x 10-216.5 x 10-3380
374.1510110.1 x 10-216.8 x 10-3394
374.1510110.1 x 10-217.4 x 10-3500
374.1510110.1 x 10-218.5 x 10-3575
374.1510110.1 x 10-218.6 x 10-3618
374.1510120.2 x 10-20.001723
374.1510120.2 x 10-20.001823
374.1510120.2 x 10-25.9 x 10-388
374.1510120.2 x 10-25.8 x 10-391
374.1510120.2 x 10-27.4 x 10-3142
374.1510120.2 x 10-27.4 x 10-3142
374.1510120.2 x 10-28.4 x 10-3169
374.1510120.2 x 10-28.3 x 10-3170
374.1510120.2 x 10-29.7 x 10-3290
374.1510120.2 x 10-29.9 x 10-3292
374.1510120.2 x 10-211.6 x 10-3566
374.1510120.2 x 10-211.8 x 10-3574
374.1510120.2 x 10-212.3 x 10-3648
374.1510130.2 x 10-23.1 x 10-374
374.1510130.2 x 10-23.3 x 10-376
374.1510130.2 x 10-24.7 x 10-3151
374.1510130.2 x 10-24.9 x 10-3154
374.1510130.2 x 10-25.4 x 10-3234
374.1510130.2 x 10-25.2 x 10-3238
374.1510130.2 x 10-25.8 x 10-3261
374.1510130.2 x 10-26.4 x 10-3388
374.1510130.2 x 10-26.4 x 10-3389
374.1510130.2 x 10-26.3 x 10-3402
374.1510130.2 x 10-27.0 x 10-3525
374.1510130.2 x 10-27.1 x 10-3630
393.1512003.8 x 10-323
393.1512004.0 x 10-323
393.15120010.0 x 10-368
393.15120010.5 x 10-369
393.15120019.3 x 10-3186
393.15120020.0 x 10-3187
393.15120024.8 x 10-3353
393.15120025.0 x 10-3360
393.15120028.8 x 10-3562
393.15120029.0 x 10-3570
393.15120029.9 x 10-3646
393.15120030.0 x 10-3694
394.1512110.1 x 10-22.7 x 10-321
394.1512110.1 x 10-22.7 x 10-321
394.1512110.1 x 10-26.1 x 10-376
394.1512110.1 x 10-26.9 x 10-377
394.1512110.1 x 10-211.3 x 10-3149
394.1512110.1 x 10-211.1 x 10-3153
394.1512110.1 x 10-214.8 x 10-3297
394.1512110.1 x 10-214.8 x 10-3300
394.1512110.1 x 10-216.8 x 10-3437
394.1512110.1 x 10-216.7 x 10-3460
394.1512110.1 x 10-218.4 x 10-3585
394.1512110.1 x 10-218.1 x 10-3621
394.1512110.1 x 10-219.3 x 10-3703
394.1512120.2 x 10-20.001725
394.1512120.2 x 10-20.001925
394.1512120.2 x 10-23.9 x 10-363
394.1512120.2 x 10-23.9 x 10-363
394.1512120.2 x 10-27.3 x 10-3150
394.1512120.2 x 10-27.3 x 10-3150
394.1512120.2 x 10-29.4 x 10-3280
394.1512120.2 x 10-29.4 x 10-3282
394.1512120.2 x 10-211.0 x 10-3464
394.1512120.2 x 10-211.0 x 10-3491
394.1512120.2 x 10-211.3 x 10-3506
394.1512120.2 x 10-211.7 x 10-3602
394.1512120.2 x 10-211.5 x 10-3636
394.1512120.2 x 10-211.5 x 10-3659
394.1512130.2 x 10-23.1 x 10-383
394.1512130.2 x 10-23.1 x 10-385
394.1512130.2 x 10-24.5 x 10-3148
394.1512130.2 x 10-24.5 x 10-3150
394.1512130.2 x 10-25.8 x 10-3296
394.1512130.2 x 10-25.8 x 10-3302
394.1512130.2 x 10-26.3 x 10-3450
394.1512130.2 x 10-26.1 x 10-3468
394.1512130.2 x 10-26.5 x 10-3494
394.1512130.2 x 10-26.9 x 10-3510
394.1512130.2 x 10-27.4 x 10-3665
393.1512010.1 (c) x 10-23.0 x 10-328
393.1512010.1 (c) x 10-23.0 x 10-328
393.1512010.1 (c) x 10-27.1 x 10-373
393.1512010.1 (c) x 10-28.2 x 10-374
393.1512010.1 (c) x 10-211.6 x 10-3155
393.1512010.1 (c) x 10-212.4 x 10-3156
393.1512010.1 (c) x 10-215.3 x 10-3309
393.1512010.1 (c) x 10-215.9 x 10-3318
393.1512010.1 (c) x 10-217.9 x 10-3480
393.1512010.1 (c) x 10-218.4 x 10-3492
393.1512010.1 (c) x 10-219.5 x 10-3643
393.1512010.1 (c) x 10-219.8 x 10-3655
393.1512010.1 (c) x 10-222.0 x 10-3830
393.1512010.1 (c) x 10-221.2 x 10-3874

a) w2 = mass fraction of CaCl2
b) Based on moles of H2O, CaCl2 and CO2
c) Solid CaCO3 was also present during this set of measurements.

Method/Apparatus/Procedure:

Salt solution and gas were charged to a 300-ml copper-lined vessel supported in a heater, and were equilibrated by rocking. Temperature was measured by a copper constant thermocouple placed in a well in the vessel; pressure was measured by a Crosby deadweight balance. Samples were withdrawn from the bottom of the vessel into a glass trap; the gas evolved from the sample was measured in a water-jacketed buret over mercury at atmospheric pressure, and the solution residue was weighed. Correction was made for the volume of gas still dissolved in the solution. The total volume was reduced to STP and the number of moles was obtained from the molar volume of carbon dioxide, taken as 22,264 cm3. Measurements on a charge of solution were made first at the maximum pressure, after which the pressure was reduced by venting gas. Equilibration and sampling was repeated for measurements at lower pressures.

Source and Purity of Materials:

(1) Ohio Chemical Co., medicinal.
(2) Baker, cp.
(3) No details.

Estimated Errors

Temperature: δT/K = ±1 (authors)
Solubility: δx1/x1 (mean) = < ±0.03 (authors)
Ambient Pressure: ΔP/P = ±0.0025 or ΔP/Mpa < 0.007, whichever is larger (authors).

References:

No references.

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