SDS Volume
Volume 59. Polycyclic Aromatic Hydrocarbons: Binary Non-aqueous Systems, Part II Solutes F-Z, p 73
Source Publication
Szafranski, A. M.; Wyrzykowska-Stankiewicz, D.; Int. Data Series: Sel. Data Mixtures, Ser. A 1984, 50.
Conditions:
Room Temp: Temperature $\pu{K}$
Compiler:
Methodology:
Constant temperature bath and a precision thermometer.
Mixtures of known concentrations sealed in glass ampoules and placed in constant temperature to equilibrate. Samples were rotated while bath temperature slowly increased. Solubility determined by visual noting the same temperature at which the last trace of solid solute disappeared.
Sample Information:
- Pure Grade, Inst. Chem. Przerobki Wegla, Zabrze, Poland, was recrystallized thrice from aqueous-methanol.
- Pure Grade, Fabryka Odczynnikow Chem., Gliwice, Poland, was distilled before use.
Measurement Errors:
Ambient temperature: T/K: precision ±0.1. x1: ±0.0005.
System Components:
- Indole, $\ce{ C8H7N }$; [120-72-9] NIST WebBook
- Diphenyl ether, $\ce{ C12H10O }$; [101-84-8] NIST WebBook
Experimental Data
| $T$ ($\pu{K}$) | $x_{1}$ | $x_{2}$ |
|---|---|---|
| 300.00 | 0.0000 | 1.0000 |
| 294.15 | 0.1390 | 0.8610 |
| 291.55 | 0.2041 | 0.7959 |
| 289.05 | 0.2664 | 0.7336 |
| 283.75 | 0.3837 | 0.6163 |
| 282.35 | 0.4116 | 0.5884 |
| 281.75 | 0.4389 | 0.5611 |
| 286.15 | 0.4920 | 0.5080 |
| 294.55 | 0.5923 | 0.4077 |
| 301.15 | 0.6855 | 0.3145 |
| 307.95 | 0.7722 | 0.2278 |
| 313.85 | 0.8532 | 0.1468 |
| 324.95 | 1.0000 | 0.0000 |
Compiler: Eutectic point occurs at about x1 = 0.433 and T/K = 281.2.
