SDS Volume (3344)
Volume 67. Halogenated Ethanes and Ethenes with Water, p 426
Original Measurements
Gossett, J. M.; Environ. Sci. Technol. 1987, 21, 202-8.
Variables:
Room Temp: 283 - 308 $\pu{K}$
Prepared by:
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:
- Alfa Products, ultrapure; greater than 99% pure.
- Distilled.
Estimated Errors:
Ambient temperature: ±0.1 K.
Mass concentration (m/v) (1): See above.
Components:
- Tetrachloroethene, $\ce{ C2Cl4 }$; [127-18-4] NIST WebBook
- Water, $\ce{ H2O }$; [7732-18-5] NIST WebBook
Experimental Data
| $T$ (°C) | 100w1 | $x_{1}$ | $k_{\rm{D}}$ (m3 atm mol-1) |
|---|---|---|---|
| 9.6 | 0.02553 | 2.774 x 10-5 | 6.82 x 10-3 |
| 17.5 | 0.02299 | 2.498 x 10-5 | 0.0117 |
| 24.8 | 0.02292 | 2.491 x 10-5 | 0.0177 |
| 34.6 | 0.02405 | 2.613 x 10-5 | 0.0282 |
(a) These values were calculated by the compiler.
