SDS Volume (3665)

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

Original Measurements

Vorobeva, A. I.; Karapetyants, M. Kh.; Zh. Fiz. Khim. 40, 3018 (1966).

Variables:

Room Temp: 298 $\pu{K}$

Prepared by:

A. Skrzecz

Method/Apparatus/Procedure:

The titration method, [1], was used to determine solubility of the mixtures. The third component was added to the binary homogeneous mixture until cloudiness was first observed. Density of the saturated mixtures was measured; these results were graphed. To obtain equilibrium, ternary mixtures were stirred in a thermostat vessel for several hours. After phase separation, the density of each phase was measured and composition was determined from the graphs prepared earlier. Concentration at the critical point was found by method described in [2]. Water included in ethanol was taken into account in all measurements.

Source and Purity of Materials:

1. Source not specified, "rectificate grade," distilled; water concentration was determined by the Karl Fischer method.
2. Source not specified; BP = 125.5°C, $n_{D}^{20}$ = 1.3976.
3. Source not specified.

Estimated Errors:

Ambient temperature: Solubility ±0.001 mass fraction.
Mass concentration (m/v) (1): Not reported.

References

¹ Bancroft, W. D.; Phys. Rev. 3, 21 (1896).
² Zilberman,E. N.; Zh. Fiz. Khim. 26, 1458 (1952).