SDS Volume (3104)

Volume 67. Halogenated Ethanes and Ethenes with Water, p 496

Original Measurements

Warner, H. P.; Cohen, J. M.; Ireland, J. C.; 'Determination of Henry's Law Constants of Selected Priority Pollutants' U.S. EPA Technical Report, PB87-212684, Cincinnati, OH.; July 1987.

Variables:

Room Temp: 298 $\pu{K}$

Prepared by:

A.L. Horvath

Method/Apparatus/Procedure:

The original method and apparatus for the determination of Henry's law constants, as described by Mackay, et al. [1], was used. The general procedure was to add an excess quantity of trans-1,2-dichloroethene to distilled deionized water, place the sample in a thermostat bath, and mix overnight. A portion of this solution was returned to the stripping vessel. The trans-1,2-dichloroethene was stripped isothermally from the solution mixture at a known gas flow rate. The Henry's law constantwas calculated from the log of the concentration versus time plot. The experimental data values are averages of two or more replicates.

Source and Purity of Materials:

1. Purest quality available, stated purity greater than 99%, used as received.
2. Distilled and deionized.

Estimated Errors:

Ambient temperature: ±0.05 K.
Mass concentration (m/v) (1): ±6.0% std. dev.

References

¹ Mackay, D.; Shiu, W. Y.; Sutherland, R. D. Environ. Sci. Technol. 1979, 13, 333.