Components:
(1) Indole,
C8H7N; [120-72-9]
NIST WebBook
(2) Diphenyl ether,
C12H10O; [101-84-8]
NIST WebBook
Original Measurements
Szafranski, A. M.; Wyrzykowska-Stankiewicz, D.; Int. Data Series: Sel. Data Mixtures, Ser. A 1984, 50.
Variables:
Ambient temperature: Temperature
Prepared by:
Method/Apparatus/Procedure:
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.
Source and Purity of Materials:
- 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.
Estimated Errors:
Ambient temperature: T/K: precision ±0.1. x1: ±0.0005.
Experimental Values:
| T (K) | x1 | x2 |
|---|---|---|
| 300.0 | 0.0 | 1.0 |
| 294.15 | 1.390 x 10-1 | 8.610 x 10-1 |
| 291.55 | 2.041 x 10-1 | 7.959 x 10-1 |
| 289.05 | 2.664 x 10-1 | 7.336 x 10-1 |
| 283.75 | 3.837 x 10-1 | 6.163 x 10-1 |
| 282.35 | 4.116 x 10-1 | 5.884 x 10-1 |
| 281.75 | 4.389 x 10-1 | 5.611 x 10-1 |
| 286.15 | 4.920 x 10-1 | 5.080 x 10-1 |
| 294.55 | 5.923 x 10-1 | 4.077 x 10-1 |
| 301.15 | 6.855 x 10-1 | 3.145 x 10-1 |
| 307.95 | 7.722 x 10-1 | 2.278 x 10-1 |
| 313.85 | 8.532 x 10-1 | 1.468 x 10-1 |
| 324.95 | 1.0 | 0.0 |
(None) Compiler: Eutectic point occurs at about x1 = 0.433 and T/K = 281.2.
