SDS Volume (3869)

Volume 69. Ternary Alcohol-Hydrocarbon-Water Systems, p None

Original Measurements

Bancroft, W. D.; Hubard, S. S.; J. Am. Chem. Soc. 64, 347 (1942).

Variables:

Room Temp: 298 $\pu{K}$

Prepared by:

A. Skrzecz

Method/Apparatus/Procedure:

The binodal curve was prepared by the titration method in glass-stoppered thermostated flasks. The end-point was taken as the first appearance of cloudiness (when water was the saturating liquid) and the first appearance of tiny drops (when benzene was the saturating liquid). The phase equilibrium data were obtained by the authors' new procedure described in the paper. A binary homogeneous mixture of known composition was added to a known amount of the phase until homogenization was observed. Then the phase composition was calculated, by trial-and-error method, using the authors knowledge about binodal curve. Data reported in [1] and 2 were included in the description of the saturation curve.

Source and Purity of Materials:

1. Source not specified; absolute alcohol; dried with $\ce{CaO}$, distilled.
2. Source not specified; thiophene-fee grade; dried with $\ce{CaO}$, distilled
3. Distilled.

Estimated Errors:

Ambient temperature: Temp. ±0.1°C.
Mass concentration (m/v) (1): Not reported.

References

¹ Lincoln, A. T.; J. Phys. Chem. 4, 161 (1899).
² Varteressian, K. A.; Fenske, M. R.; Ind. Eng. Chem. 28, 928 (1936).