SDS Volume

Volume 20. Halogenated Benzenes, Toluenes and Phenols with Water, p 237

Source Publication

Strachan, A. N.; Field, J. P.; Fleming, K. A.; Int. Solvent Extr. Conf.; (Proc. ), Vol. 2, 1980, page paper 80-2, 6 pp.

Conditions:

Room Temp: 25 °C

Compiler:

F.W. Getzen

Methodology:

An excess of 1,3-bis(trifluoromethy1) benzene was stirred with 100 mL water in a closed flask in a thermally regulated bath (±0.1 °C) for 30 min. After phase separation and standing for several hours, two samples of known amounts were removed from the aqueous phase and extracted with hexane. The absorbances of the extracted samples were measured ($\pu{265 nm}$) with a Pye Unicam SP 30 spectrophotometer. Hexane solutions of the solute is known concentrations were used to establish the extinction coefficient ($\pu{246 L mol-1 cm-1}$). The procedure was repeated to give a total of four concentration measurements.

Sample Information:

1. Fluorochem Limited 97-100%; redistilled and middle cut used.
2. distilled.

Measurement Errors:

Ambient temperature: ±0.1 K (authors).
Mass concentration (m/v) (1): ±3% (authors).