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IUPAC-NIST Solubility Database
NIST Standard Reference Database 106
Solubility System:
Tetrachloroethene (tetrachloroethylene) with Water.
Components:
(1) Water; H2O; [7732-18-5]
NIST Chemistry WebBook
for detail
(2) Tetrachloroethene (tetrachloroethylene); C2Cl4; [127-18-4]
NIST Chemistry WebBook
for detail
Original Measurements:
Gossett, J.M., Environ. Sci. Technol. 1987, 21, 202-8.
Variables:
Temperature = 283 K - 308 K
Prepared By:
A. L. Horvath
Experimental Data:
(Notes on the Nomenclature)
t/°C
Henry's law constant [(dimensionless)]
CV
10
2
* Mass Fraction w
1
(compiler)
10
5
* Mole Fraction x
1
(compiler)
9.6
6.82 x 10
-3
3.75
2.553 x 10
-2
2.774
17.5
1.17 x 10
-2
1.28
2.299 x 10
-2
2.498
24.8
1.77 x 10
-2
4.81
2.292 x 10
-2
2.491
34.6
2.82 x 10
-2
1.63
2.405 x 10
-2
2.613
Notes:
a
CV = coefficient of variation ( = 100 S.D./mean).
Method/Apparatus/Procedure:
A modification of the EPICS procedure was used for measuring Henry's law constants. A precise quantity of tetrachloroethene was injected into serum bottles which contained distilled water. The bottles were incubated for 18-24 hours at four desired temperatures in a reciprocating shaker bath. The headspace concentrations of the EPICS bottles were measured by a gas chromatograph which was equipped with a flame ionization detector. The mean of the coefficient of variation values was about 4.3 %.
Source and Purity of Materials:
(1) Alfa Products, ultrapure; greater than 99% pure.
(2) Distilled.
Estimated Errors:
Solubility: See above.
Temperature: ± 0.1 K.