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IUPAC-NIST Solubility Database
NIST Standard Reference Database 106
Solubility System:
1,1,2,2-Tetrachloroethane with Water.
Components:
(1) Water; H2O; [7732-18-5]
NIST Chemistry WebBook
for detail
(2) 1,1,2,2-Tetrachloroethane; C2H2Cl4; [79-34-5]
NIST Chemistry WebBook
for detail
Original Measurements:
Barr, R.S.; Newsham, D.M.T., Fluid Phase Equilibr. 1987, 35, 189-205.
Variables:
Temperature = 293 K - 323 K
Prepared By:
A. L. Horvath
Experimental Remarks:
Mole fraction of 1,1,2,2-tetrachloroethane (x
1
) was calculated from the activity coefficients at infinite dilution (γ
∞
1
) using the relation x
1
= 1/γ
∞
1
.
Experimental Data:
(Notes on the Nomenclature)
t/°C
10
2
* Mass Fraction w
1
(compiler)
10
2
* Mass Fraction w
2
(compiler)
10
4
* Mole Fraction x
1
10
3
* Mole Fraction x
2
20
0.234
0.123
2.52
11.3
35
0.269
0.168
2.89
15.4
50
0.308
0.225
3.32
20.6
Method/Apparatus/Procedure:
The water-rich mixture was studied using gas-liquid chromatography in which a mixture of methane and 1,1,2,2-tetrachloroethane vapor passed through the sampling loop. The eluted 1,1,2,2-tetrachloroethane was determined with a flame ionization detector. The organic-rich mixture was studied using an isopiestic method in which CaCl
2
solution controlled the partial pressure of water. The water concentration of the organic phase was determined by using a Karl Fischer titration apparatus
Source and Purity of Materials:
(1) BDH Chemicals Limited, redistilled in a glass sieve tray column.
(2) Doubly-distilled tap water.
Estimated Errors:
Solubility: Not specified.
Temperature: ± 0.05 K.