SDS Volume (3664)
Volume 69. Ternary Alcohol-Hydrocarbon-Water Systems, p None
Original Measurements
Huber, J. F. K.; Meijers, C. A. M.; Hulsman, J. A. R.; J. Anal. Chem. 44, 111 (1972).
Variables:
Room Temp: 298 $\pu{K}$
Prepared by:
Method/Apparatus/Procedure:
Equilibrium was established in a thermostat vessel with a magnetic stirrer and the composition of each of the phases was determined analytically by glc. Data were obtained during measurements of partition coefficients for steroids in liquid-liquid systems.
Source and Purity of Materials:
- Merck Uvasole, spectroquality grade; used as received.
- Merck Uvasole, spectroquality grade; used as received.
- Double distilled.
Estimated Errors:
Ambient temperature: Temp. ±0.1°C.
Mass concentration (m/v) (1): Not reported.
Components:
- Ethanol, $\ce{ C2H6O }$; [64-17-5] NIST WebBook
- 2,2,4-Trimethylpentane, $\ce{ C8H18 }$; [540-84-1] NIST WebBook
- Water, $\ce{ H2O }$; [7732-18-5] NIST WebBook
Experimental Data
Compositions of coexisting phases
| $T$ (°C) | $T$ ($\pu{K}$) | $x_{1}$ | $x_{2}$ | w1 | w2 |
|---|---|---|---|---|---|
| 25.0 | 298.2 | 0.317 | 0.658 | 0.162 | 0.833 |
| 25.0 | 298.2 | 0.142 | 0.847 | 0.063 | 0.935 |
| 25.0 | 298.2 | 0.126 | 0.865 | 0.055 | 0.943 |
| 25.0 | 298.2 | 0.093 | 0.900 | 0.040 | 0.959 |
| 25.0 | 298.2 | 0.059 | 0.935 | 0.025 | 0.974 |
| 25.0 | 298.2 | 0.037 | 0.961 | 0.015 | 0.984 |
| 25.0 | 298.2 | 0.700 | 0.133 | 0.639 | 0.301 |
| 25.0 | 298.2 | 0.671 | 0.051 | 0.740 | 0.140 |
| 25.0 | 298.2 | 0.601 | 0.021 | 0.750 | 0.065 |
| 25.0 | 298.2 | 0.529 | 9 x 10-3 | 0.723 | 0.030 |
| 25.0 | 298.2 | 0.416 | 3 x 10-3 | 0.639 | 0.011 |
| 25.0 | 298.2 | 0.296 | 2 x 10-3 | 0.514 | 9 x 10-3 |
