SDS Volume
Volume 59. Polycyclic Aromatic Hydrocarbons: Binary Non-aqueous Systems, Part II Solutes F-Z, p 75
Source Publication
Yokoyama, C.; Ebina, T.; Takahashi, S.; J. Chem. Eng. Data 1993, 38, 583-586.
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:
- 99.9%, Aldrich Chemical Company, Milwaukee, Wisconsin, USA, was used as received.
- 99.0%, Aldrich Chemical Company, was used as received from manufacturer.
Measurement Errors:
Ambient temperature: T/K: precision ±0.02. x1: ±0.0001.
System Components:
- Indole, $\ce{ C8H7N }$; [120-72-9] NIST WebBook
- 2-Methylindole, $\ce{ C9H9N }$; [95-20-5] NIST WebBook
Experimental Data
| $T$ ($\pu{K}$) | $x_{1}$ | $x_{2}$ |
|---|---|---|
| 332.77 | 0.0000 | 1.0000 |
| 325.03 | 0.1125 | 0.8875 |
| 318.87 | 0.2026 | 0.7974 |
| 311.01 | 0.3012 | 0.6988 |
| 302.02 | 0.4018 | 0.5982 |
| 292.89 | 0.4999 | 0.5001 |
| 289.52 | 0.6005 | 0.3995 |
| 300.39 | 0.7015 | 0.2985 |
| 310.05 | 0.8001 | 0.1999 |
| 318.18 | 0.9033 | 0.0967 |
| 326.26 | 1.0000 | 0.0000 |
Authors report eutectic point occurs at x1 = 0.5621 and T/K = 286.24.
