IUPAC-NIST Solubilities Database

IUPAC-NIST Solubility Database
NIST Standard Reference Database 106

Solubility System: Carbon dioxide with Water

Components:
   (1) Carbon dioxide; CO2; [124-38-9]  NIST Chemistry WebBook for detail
   (2) Water; H2O; [7732-18-5]  NIST Chemistry WebBook for detail

Original Measurements:
   Novák, J.P.; Fried, V; Pick, J., Collect. Czech. Chem. Commun. 1961, 26, 2266-70.

Variables:
   Temperature = 284.65 K to 350.15 K
   Pressure = 12.8 kPa to 97.5 kPa

Prepared By:
   Rosa Crovetto

Experimental Data:   (Subscripts 1,2,3, ..., in column headings refer to components 1,2,3, ...)


t/°C	T/K	Temp Note	Pressure [mmHg]	Pressure (compiler) [bar]	Mole Fraction (x₁)
11.5	284.65	a	96	0.128	1.059
11.5	284.65	a	125	0.167	1.411
11.5	284.65	a	211	0.281	2.409
11.5	284.65	a	237	0.316	2.716
11.5	284.65	a	489	0.652	5.641
11.5	284.65	a	714	0.952	8.262
20.0	293.15	a	127	0.169	0.982
20.0	293.15	a	225	0.300	1.948
20.0	293.15	a	391	0.521	3.429
20.0	293.15	a	599	0.799	5.359
20.0	293.15	a	678	0.904	6.179
20.0	293.15	a	620	0.931	6.400
30.0	303.15	a	110	0.147	0.519
30.0	303.15	a	126	0.168	0.724
30.0	303.15	a	246	0.328	1.538
30.0	303.15	a	261	0.348	1.579
30.0	303.15	a	471	0.628	3.101
30.0	303.15	a	696	0.928	4.758
40.0	313.15	a	132	0.176	0.458
40.0	313.15	a	274	0.365	1.203
40.0	313.15	a	490	0.653	2.422
40.0	313.15	a	490	0.653	2.433
40.0	313.15	a	696	0.928	3.526
40.0	313.15	a	702	0.936	3.596
50.0	323.15	a	176	0.235	0.352
50.0	323.15	a	345	0.460	1.137
50.0	323.15	a	520	0.693	2.053
50.0	323.15	a	527	0.703	2.059
50.0	323.15	a	583	0.777	2.303
50.0	323.15	a	589	0.785	2.358
50.0	323.15	a	687	0.916	2.834
60.0	333.15	a	200	0.267	0.264
60.0	333.15	a	296	0.395	0.585
60.0	333.15	a	508	0.677	1.358
60.0	333.15	a	699	0.932	2.123
60.0	333.15	a	731	0.975	2.274
69.0	342.15	a	310	0.413	0.368
69.0	342.15	a	325	0.433	0.388
69.0	342.15	a	333	0.444	0.462
69.0	342.15	a	408	0.544	0.654
69.0	342.15	a	429	0.572	0.695
69.0	342.15	a	453	0.604	0.834
69.0	342.15	a	564	0.752	1.231
69.0	342.15	a	670	0.893	1.554
69.0	342.15	a	710	0.947	1.669
69.0	342.15	a	721	0.961	1.730
77.0	350.15	a	466	0.621	0.433
77.0	350.15	a	468	0.624	0.491
77.0	350.15	a	573	0.764	0.794
77.0	350.15	a	583	0.777	0.834
77.0	350.15	a	654	0.872	0.982
77.0	350.15	a	699	0.932	1.162
77.0	350.15	a	699	0.932	1.137
77.0	350.15	a	701	0.935	1.157

Notes:
   ^a  Calculated by the compiler.

Method/Apparatus/Procedure:
   Saturation method. Five cylinders containing water were saturated with CO₂ in a thermostat at the pressure of measurement. No stirrings was provided. Samples were withdrawn at constant pressure and titrated. Details in source.

Source and Purity of Materials:
   (1) Tank quality. Light gases were distilled.
   (2) Distilled.

Estimated Errors:
   Solubility: δx = ± 1 %
   Temperature: δT/K = ± 0.1
   Pressure: δP/kPa = ± 0.07