IUPAC-NIST Solubilities Database

IUPAC-NIST Solubility Database
NIST Standard Reference Database 106

Solubility System: Carbon dioxide with Sodium perchlorate and Water

Components:
   (1) Sodium perchlorate; NaClO4; [7601-89-0]  NIST Chemistry WebBook for detail
   (2) Carbon dioxide; CO2; [124-38-9]  NIST Chemistry WebBook for detail
   (3) Water; H2O; [7732-18-5]  NIST Chemistry WebBook for detail

Original Measurements:
   Gerecke, J., Diss. Dr. rer. Nat. 1969, Hochsch. "Carl Schorlemmer", Leuna-Merseburg, DDR.

Variables:
   Temperature = 288.15 K to 333.15 K
   Pressure = 288.15 K to 333.15 K
   Concentration = c₂/mol dm^-3 = 0 - 1.6

Prepared By:
   D.M. Mason

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


t/°C	T/K	Concentration C₂ [mol/dm³]	α	α Note
15	288.15	0	0.990	a
15	288.15	0.2	0.910	a
15	288.15	0.4	0.872	a
15	288.15	0.8	0.808	a
15	288.15	1.6	0.664	a
20	293.15	0	0.860	a
20	293.15	0.2	0.777	a
20	293.15	0.4	0.751	a
20	293.15	0.8	0.7085	a
20	293.15	1.6	0.565	a
25	298.15	0	0.758	a
25	298.15	0.2	0.678	a
25	298.15	0.4	0.648	a
25	298.15	0.8	0.623	a
25	298.15	1.6	0.488	a
30	303.15	0	0.671	a
30	303.15	0.2	0.595	a
30	303.15	0.4	0.576	a
30	303.15	0.8	0.553	a
30	303.15	1.6	0.4265	a
35	308.15	0	0.605	a
35	308.15	0.2	0.526	a
35	308.15	0.4	0.520	a
35	308.15	0.8	0.485	a
35	308.15	1.6	0.3661	a
40	313.15	0	0.546	a
40	313.15	0.2	0.465	a
40	313.15	0.4	0.4535	a
40	313.15	0.8	0.436	a
40	313.15	1.6	0.314	a
45	318.15	0	0.482	a
45	318.15	0.2	0.412	a
45	318.15	0.4	0.401	a
45	318.15	0.8	0.3838	a
45	318.15	1.6	0.2575	a
50	323.15	0	0.436	a
50	323.15	0.2	0.366	a
50	323.15	0.4	0.355	a
50	323.15	0.8	0.3327	a
50	323.15	1.6	0.220	a
55	328.15	0	0.392	a
55	328.15	0.2	0.322	a
55	328.15	0.4	0.305	a
55	328.15	0.8	0.283	a
55	328.15	1.6	0.183	a
60	333.15	0	0.372	a
60	333.15	0.8	0.246	a
60	333.15	1.6	0.1578	a

Notes:
   ^a  α = Bunsen coefficient [cm³ (STP) cm^-3 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. 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.