NIST-IUPAC Solubility Data Series

Carbon dioxide with Water (IUPAC SDS Volume 62)

SDS Volume

Volume 62. Carbon Dioxide in Water and Aqueous Electrolyte Solutions, p None

Source Publication

Wiebe, R.; Gaddy, V. L.; J. Am. Chem. Soc. 1939, 61, 315-8

Conditions:

Room Temp: 323.15 - 373.15 $\pu{K}$
Pressure: 2.53 - 70.9 $\pu{MPa}$

Compiler:

R. Crovetto

Methodology:

A high-pressure autoclave was used. Two flasks helped to maintain pressure constant during sampling. Pressure was read on a dead weight gauge. The liquid sample was analyzed for its $\ce{CO2}$ content by expansion into a thermostatted gas buret.
It was not stated if stirring was used.

Sample Information:

Purity 99.98%.
Not stated.

Measurement Errors:

Ambient temperature: Not given.

System Components:

Carbon dioxide, $\ce{ CO2 }$; [124-38-9] NIST WebBook
Water, $\ce{ H2O }$; [7732-18-5] NIST WebBook

Experimental Data

Authors' note: There is a change in solubility vs pressure in the low temperature range and at 100-200 atm that could suggest the coexistence of two liquid phases.

$T$ ($\pu{K}$)	$T$ (°C)	$x_{1}$	$P$ ($\pu{atm}$)	$S$ ($\pu{cm3(\rm{1})/g(\rm{2})}$)	$P_{\rm{c}}$ ($\pu{bar}$) ^a
323.15	50	7.797 x 10^-3^a	25	9.71^b	25.33
323.15	50	0.01377^a	5E+1	17.246^b	50.66
323.15	50	0.01791^a	75	22.534^b	75.99
323.15	50	0.02032^a	1E+2	25.628^b	101.325
323.15	50	0.02120^a	125	26.77^b	126.66
323.15	50	0.02188^a	1.5E+2	27.643^b	152.0
323.15	50	0.02304^a	2E+2	29.143^b	202.6
323.15	50	0.02474^a	3E+2	31.34^b	304.0
323.15	50	0.02623^a	4E+2	33.29^b	405.3
323.15	50	0.02887^a	6E+2	36.73^b	608.9
323.15	50	0.03009^a	7E+2	38.34^b	709.3
348.15	75	5.485 x 10^-3^a	25	6.815^b	25.33
348.15	75	0.01009^a	5E+1	12.59^b	50.66
348.15	75	0.01361^a	75	17.044^b	75.99
348.15	75	0.01640^a	1E+2	20.61^b	101.325
348.15	75	0.01950^a	1.5E+2	24.58^b	152.0
348.15	75	0.02112^a	2E+2	26.66^b	202.6
348.15	75	0.02332^a	3E+2	29.51^b	304.0
348.15	75	0.02515^a	4E+2	31.88^b	405.4
348.15	75	0.02952^a	0.700	37.59^b	709.3
373.15	100	4.323 x 10^-3^a	25	5.365^b	25.33
373.15	100	8.170 x 10^-3^a	5E+1	10.179^b	50.66
373.15	100	0.01143^a	75	14.289^b	75.99
373.15	100	4.10 x 10^-3^a	1E+2	17.67^b	101.325
373.15	100	0.01806^a	1.5E+2	22.725^b	152.0
373.15	100	0.02037^a	2E+2	25.694^b	202.6
373.15	100	0.02334^a	3E+2	29.53^b	304.0
373.15	100	0.02554^a	4E+2	32.39^b	405.3
373.15	100	0.03022^a	7E+2	38.50^b	709.3

(a) Calculated by the compiler.

(b) Solubility of CO₂ (cm³ at STP per gram of water).

IUPAC-NIST Solubility Data Series, SRD 106