SDS Volume (3771)
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:
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 by the refractive index method reported in [2] and a complementary method using the Karl Fischer titrations as reported in [3].
Source and Purity of Materials:
- Merck, AR grade; distilled, dried by the addition of anhydrous potassium carbonate, distilled; purity better than $\pu{99.6 mole%}$ by GLC.
- BDH; used as received; purity better than $\pu{99.6 mole%}$ by GLC.
- 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).
Components:
- 2-Methyl-2-propanol, $\ce{ C4H10O }$; [75-65-0] NIST WebBook
- 1-Heptene, $\ce{ C7H14 }$; [592-76-7] NIST WebBook
- Water, $\ce{ H2O }$; [7732-18-5] NIST WebBook
Experimental Data
Compositions along the saturation curve
| $T$ (°C) | $T$ ($\pu{K}$) | $x_{1}$ | $x_{2}$ | w1 | w2 |
|---|---|---|---|---|---|
| 25.0 | 298.2 | 0.000 | 0.000 | 0.0 | 0.000 |
| 25.0 | 298.2 | 0.057 | 2 x 10-3 | 0.198 | 9 x 10-3 |
| 25.0 | 298.2 | 0.138 | 0.010 | 0.386 | 0.035 |
| 25.0 | 298.2 | 0.191 | 0.021 | 0.467 | 0.064 |
| 25.0 | 298.2 | 0.257 | 0.038 | 0.540 | 0.099 |
| 25.0 | 298.2 | 0.307 | 0.062 | 0.571 | 0.143 |
| 25.0 | 298.2 | 0.375 | 0.129 | 0.572 | 0.244 |
| 25.0 | 298.2 | 0.411 | 0.205 | 0.541 | 0.336 |
| 25.0 | 298.2 | 0.391 | 0.319 | 0.456 | 0.462 |
| 25.0 | 298.2 | 0.363 | 0.438 | 0.380 | 0.570 |
| 25.0 | 298.2 | 0.305 | 0.573 | 0.291 | 0.680 |
| 25.0 | 298.2 | 0.220 | 0.707 | 0.197 | 0.787 |
| 25.0 | 298.2 | 0.116 | 0.855 | 0.098 | 0.896 |
| 25.0 | 298.2 | 0.060 | 0.928 | 0.049 | 0.948 |


