Compilation - Ethanol with p-Xylene and Water (IUPAC SDS Volume 69)
SDS Volume (3658)
Volume 69. Ternary Alcohol-Hydrocarbon-Water Systems, p None
Original Measurements
Letcher, T. M.; Siswana, P. M.; van der Watt, P.; Radloff, S.; J. Chem. Thermodyn. 21, 1053 (1989).
Variables:
Room Temp: 298 $\pu{K}$
Prepared by:
Method/Apparatus/Procedure:
The titration method was used to determine binodal curve. A binary mixture of known composition was titrated with the third component until cloudiness was observed. Tie line compositions were related to the coexisting curve; water was determined by Karl Fischer titration. The methods were described in [1].
Source and Purity of Materials:
- Source not specified; used as received.
- Source not specified; recrystallized three times.
- Source not specified.
Estimated Errors:
Ambient temperature: Comp. <0.005 mole fraction (estimated authors' precision on binodal curve), <0.01 mole fraction (estimated authors' precision of tie lines).
Mass concentration (m/v) (1): Not reported.
References
1 Letcher, T. M.; Wootton, S.; Shuttleworth, B.; Heyward, C.; J. Chem. Thermodyn 18, 1037 (1986).
Components:
- Ethanol, $\ce{ C2H6O }$; [64-17-5] NIST WebBook
- 1,4-Dimethylbenzene, $\ce{ C8H10 }$; [106-42-3] 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 | 0.415 | 0.433 | 0.282 | 0.687 |
| 25.0 | 298.2 | 0.275 | 0.650 | 0.153 | 0.831 |
| 25.0 | 298.2 | 0.168 | 0.795 | 0.083 | 0.909 |
| 25.0 | 298.2 | 0.066 | 0.919 | 0.030 | 0.967 |
| 25.0 | 298.2 | 0.031 | 0.960 | 0.014 | 0.985 |
| 25.0 | 298.2 | 0.011 | 0.985 | 5 x 10-3 | 0.994 |
| 25.0 | 298.2 | 0.508 | 0.525 | 0.430 | 0.491 |
| 25.0 | 298.2 | 0.532 | 0.147 | 0.534 | 0.340 |
| 25.0 | 298.2 | 0.514 | 0.074 | 0.608 | 0.202 |
| 25.0 | 298.2 | 0.391 | 0.022 | 0.582 | 0.076 |
| 25.0 | 298.2 | 0.292 | 7 x 10-3 | 0.501 | 0.028 |
| 25.0 | 298.2 | 0.168 | 1 x 10-3 | 0.339 | 5 x 10-3 |
