IUPAC-NIST Solubilities Database

IUPAC-NIST Solubility Database
NIST Standard Reference Database 106

Solubility System: Carbon dioxide with Sodium phenoxide and Water

Components:
   (1) Sodium phenoxide; C6H5ONa; [139-02-6]  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:
   Kimura, H.; Takeuchi, T., Kagaku Kogaku 1963, 27, 2-6.

Variables:
   Temperature = 273.7 K to 353.2 K
   Pressure = 9.38 kPa to 100 kPa
   Concentration = c₂/mol dm^-3 = 0.3138 - 3.04

Prepared By:
   T. Tominaga

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


t/°C	T/K	Temp Note	Pressure [atm]	Pressure (compiler) [kPa]	Concentration C₁ [mol/dm³]	Concentration Note	Concentration C₂ [mol/dm³]	Solubility [(c1/p1)]	Solubility Note
0.5	273.7	a	0.98	99	1.221	b	0.805	1.295	c
0.5	273.7	a	0.54	55	1.081	b	0.805	2.01	c
0.5	273.7	a	0.448	45.4	1.011	b	0.805	2.26	c
0.5	273.7	a	0.262	26.5	0.797	b	0.805	3.04	c
0.5	273.7	a	0.128	13.0	0.797	b	0.805	6.22	c
20	293.2	a	0.98	99	1.186	b	0.805	1.210	c
20	293.2	a	0.534	54.1	1.081	b	0.805	2.024	c
20	293.2	a	0.25	25.3	1.00	b	0.805	4.00	c
20	293.2	a	0.213	21.6	0.7473	b	0.805	3.50	c
20	293.2	a	0.143	14.5	0.6319	b	0.805	5.581	c
20	293.2	a	0.99	100	1.857	b	1.3	1.876	c
20	293.2	a	0.616	62.4	1.770	b	1.3	2.833	c
20	293.2	a	0.267	27.1	1.694	b	1.3	6.345	c
20	293.2	a	0.151	15.3	1.650	b	1.3	10.96	c
20	293.2	a	0.99	100	3.073	b	2.0	3.104	c
20	293.2	a	0.477	48.3	3.069	b	2.0	6.434	c
20	293.2	a	0.229	23.2	3.107	b	2.0	13.17	c
20	293.2	a	0.122	12.4	2.877	b	2.0	23.58	c
20	293.2	a	0.99	100	4.09	b	3.04	4.14	c
50	323.2	a	0.98	99	1.029	b	0.805	1.05	c
50	323.2	a	0.443	44.9	0.8763	b	0.805	1.975	c
50	323.2	a	0.373	37.8	0.9792	b	0.805	2.60	c
50	323.2	a	0.215	21.8	0.8824	b	0.805	4.10	c
50	323.2	a	0.163	16.5	0.7175	b	0.805	4.40	c
50	323.2	a	0.99	100	3.08	b	2.0	3.104	c
50	323.2	a	0.604	61.2	2.737	b	2.0	4.53	c
50	323.2	a	0.216	21.9	2.525	b	2.0	11.62	c
50	323.2	a	0.126	12.8	2.29	b	2.0	18.20	c
80	353.2	a	0.98	99	0.2142	b	0.3138	0.2677	c
80	353.2	a	0.441	44.7	0.2502	b	0.3138	0.568	c
80	353.2	a	0.336	34.0	0.1951	b	0.3138	0.580	c
80	353.2	a	0.0926	9.38	0.107	b	0.3138	1.155	c

Notes:
   ^a  Calculated by the compiler.
   ^b  Solubility of CO₂ (mol/dm³ sln).
   ^c  (c₁/p₁)/mol dm^-3 atm^-1 = solubility of CO₂ at its one atm partial pressure.

Method/Apparatus/Procedure:
   The absorption vessel was 500 mL five-necked glass flask, to which a fixed amount (ca. 400 ml) of sodium phenoxide solution was placed. Carbon dioxide and air, both washed and dried, were mixed together and brought into contact with sodium phenoxide solution without stirring at atmospheric total pressure. Equilibrium was confirmed by the gas volume in the gas burette and chemical analysis of the solution.

Source and Purity of Materials:
   (1) Carbon dioxide. From a cylinder, purity not specified.
   (2) Sodium phenoxide. Sodium hydroxide was dissolved in distilled water, impurities filtered out, diluted with distilled water, and equivalent amount of phenol was dissolved.
   (3) Water. Distilled.

Estimated Errors:

   Temperature: Nothing specified.