SDS Volume (3854)

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

Original Measurements

Letcher, T. M.; Siswana, P. M.; Fluid Phase Equilib. 74, 203 (1992).

Variables:

Room Temp: 298 $\pu{K}$

Prepared by:

A. Skrzecz

Method/Apparatus/Procedure:

The points on the binodal curve were determined by the formation of a cloudy mixture on shaking after the addition of a known mass of one component to a mixture of known masses of the other two components. Precision weighing syringes were used as described in [1]. Tie line compositions were determined by the refractive index method reported in [2] and complementary method using the Karl Fischer titrations as reported in [3].

Source and Purity of Materials:

1. Merck, AR grade; distilled, dried by refluxing with $\ce{Mg}$ and $\ce{I2}$; purity better than 99.6 mole% by GLC; $d$ = 0.78688, $n$ = 1.3265.
2. BDH; used as received; purity better than $\pu{99.6 mole%}$ by GLC.
3. Source not specified.

Estimated Errors:

Ambient temperature: Estimated comp. 0.005 mole fraction on the binodal curve and 0.01 mole fraction for tie lines (estimated by the authors).
Mass concentration (m/v) (1): Not reported.

References

¹ Letcher, T. M.; Wootton, S.; Shuttleworth, B.; Heyward, C.; J. Chem. Thermodyn 18, 1037 (1986).
² Briggs; S. W.; Comings, E. W.; Ind. Eng. Chem. 35, 411 (1943).
³ Letcher, T. M.; Siswana, P. M.; van der Watt, P.; Radloff, S.; J. Chem. Thermodyn. 21, 1053 (1989).