SDS Volume (2065)
Volume 59. Polycyclic Aromatic Hydrocarbons: Binary Non-aqueous Systems, Part II Solutes F-Z, p None
Original Measurements
Shinomiya, C.; J. Chem. Soc. Japan 1940, 15, 259-270.
Variables:
Room Temp: Temperature $\pu{K}$
Prepared by:
Method/Apparatus/Procedure:
No experimental details given in paper.
Source and Purity of Materials:
- Purity and chemical source were not specified in paper.
- Purity and chemical source were not specified in paper.
Estimated Errors:
Ambient temperature: T/K: precision ±0.2 (compiler). x1: ±0.002 (compiler).
Components:
- Phenanthrene, $\ce{ C14H10 }$; [85-01-8] NIST WebBook
- 1,2,3,5-Tetranitrobenzene, $\ce{ C6H2N4O8 }$; [3698-53-1] NIST WebBook
Experimental Data
| $T$ ($\pu{K}$) | $x_{1}$ | $x_{2}$ |
|---|---|---|
| 399.2 | 0.000 | 1.000 |
| 394.2 | 0.079 | 0.921 |
| 394.2 | 0.185 | 0.815 |
| 394.2 | 0.190 | 0.810 |
| 396.5 | 0.280 | 0.720 |
| 396.7 | 0.304 | 0.696 |
| 398.2 | 0.377 | 0.623 |
| 397.7 | 0.425 | 0.575 |
| 396.7 | 0.451 | 0.549 |
| 396.2 | 0.463 | 0.537 |
| 395.7 | 0.515 | 0.485 |
| 393.7 | 0.517 | 0.483 |
| 391.2 | 0.587 | 0.413 |
| 391.2 | 0.598 | 0.402 |
| 384.7 | 0.680 | 0.320 |
| 372.2 | 0.762 | 0.238 |
| 364.2 | 0.793 | 0.207 |
| 360.2 | 0.864 | 0.136 |
| 363.2 | 0.886 | 0.114 |
| 373.7 | 1.000 | 0.000 |
Author reports formation of an incongruently melting 1:1 phenanthrene - 1,2,3,5-tetranitrobenzene compound, and a 2:3 phenanthrene - 1,2,3,5-tetranitrobenzene molecular compound having a melting point temperature of 398.2 K. Two eutectic points occur at x1 = 0.120 and T/K = 388.2, and at x1 = 0.822 and T/K = 352.2. A peritectic point occurs at x1 = 0.615 and T/K = 388.2. Compiler: From a thermodynamic viewpoint, phase diagram is more in agreement with formation of a 1:1 molecular compound, with the existence of a peritectic point at x1 = 0.615 and at T/K = 388.2 and a miscibility gap at higher temperature, with a monotectic point close to x1 = 0.12 and T/K = 392, and an eutectic point at x1 = 0.822 and T/K = 352.2.
