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IUPAC-NIST Solubility Database
NIST Standard Reference Database 106
Solubility System:
Trichloromethane (chloroform) with Sodium chloride and Water
Components:
(1) Water; H2O; [7732-18-5]
NIST Chemistry WebBook
for detail
(2) Sodium chloride; NaCl; [7647-14-5]
NIST Chemistry WebBook
for detail
(3) Trichloromethane (chloroform); CHCl3; [67-66-3]
NIST Chemistry WebBook
for detail
Original Measurements:
Pavlovskaya, E. M.; Charykov, A.K.; Tikhomirov, V.I., J. Gen. Chem. USSR, 1977, 47, 2230-4.
Variables:
Temperature = 293 K
Concentration = Concentration
Prepared By:
A. L. Horvath
Experimental Data:
(Notes on the Nomenclature)
t/°C
Concentration c
1
[mol m**-3]
Concentration c
2
[mol dm**-3]
10
2
* Mass Fraction w
1
(compiler)
10
3
* Mole Fraction x
1
(compiler)
20
57.2
0.5
0.6707
1.0390
20
51.0
1.0
0.5837
0.9236
20
42.6
1.5
0.4791
0.7730
20
37.6
2.0
0.4156
0.6850
20
30.9
2.5
0.3361
0.5660
20
25.8
3.0
0.2754
0.4742
Method/Apparatus/Procedure:
Trichloromethane was introduced from a microburet into an aqueous solution of sodium chloride which contained octanoic acid as indicator. The mixture was vigorously stirred. The pH of the solution at first remained constant right up to the appearance of a second phase, i. e., up to the saturation of the aqueous phase with trichloromethane, after which the pH began rise. The solubility was calculated from the volume of the aqueous phase and the volume of trichloromethane used for the saturation.
Source and Purity of Materials:
(1) Source and purity not given.
(2) Source and purity not given.
(3) Distilled (compiler).
Estimated Errors:
Solubility: ± 10 %.
Temperature: ± 0.5 K (compiler).