SDS Volume (3050)

Volume 67. Halogenated Ethanes and Ethenes with Water, p 470

Original Measurements

Munz, C. D.; Ph.D. Dissertation, Stanford University, Stanford, CA 1985, 306 pp.

Variables:

Room Temp: 293 $\pu{K}$

Prepared by:

A.L. Horvath

Method/Apparatus/Procedure:

The multiple equilibration technique with direct aqueous injection into a gas chromatograph was used to determine the dimensionless Henry's law constant. Known volumes of liquid and gas were introduced into a syringe and allowed to equilibrate. The ratio of gas to liquid volume was maintained constant. While vapor samples were injected directly into a gas chromatograph, the liquid samples were preconcentrated by liquid-liquid extraction before analysis. The experiments were carried out in duplicates.

Source and Purity of Materials:

1. J. T. Baker Chemicals Co., NJ, >99.5% pure.
2. 0.25 mg total organic carbon/dm3; 0.75 mg COD/dm3.

Estimated Errors:

Ambient temperature: ±0.5 K.
Mass concentration (m/v) (1): ±0.015 std. dev.