Compilation - Methanol with p-Xylene and water (IUPAC SDS Volume 69)
SDS Volume (3845)
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:
- Methanol, $\ce{ CH4O }$; [67-56-1] 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 | 0.310 | 0.660 | 0.123 | 0.870 |
| 25.0 | 298.2 | 0.144 | 0.842 | 0.049 | 0.948 |
| 25.0 | 298.2 | 0.058 | 0.916 | 0.019 | 0.977 |
| 25.0 | 298.2 | 0.021 | 0.970 | 6 x 10-3 | 0.992 |
| 25.0 | 298.2 | 5 x 10-3 | 0.985 | 2 x 10-3 | 0.997 |
| 25.0 | 298.2 | 0.728 | 0.115 | 0.608 | 0.318 |
| 25.0 | 298.2 | 0.695 | 0.039 | 0.714 | 0.133 |
| 25.0 | 298.2 | 0.620 | 0.019 | 0.700 | 0.071 |
| 25.0 | 298.2 | 0.419 | 5 x 10-3 | 0.552 | 0.022 |
| 25.0 | 298.2 | 0.199 | 0.000 | 0.306 | 0.0 |
