Compilation - Carbazole with Dibenzofuran (IUPAC SDS Volume 58)
SDS Volume (1738)
Volume 58. Polycyclic Aromatic Hydrocarbons: Binary Non-aqueous Systems, Part I Solutes A-E, p 285
Original Measurements
Cullinane, N. M.; Rees, W. T.; Trans. Faraday Soc. 1940, 36, 506-514.
Variables:
Room Temp: 354.7 - 519 $\pu{K}$
Prepared by:
Method/Apparatus/Procedure:
Mixtures were placed in small capillary tubes. Temperature was slowly varied with ample time given for equilibration. Transition temperatures determined by visual observations. Reported temperatures verified by repetitive measurements.
Source and Purity of Materials:
- Purity and chemical source not given, was sublimed and recrystallized from acetone.
- Purity and chemical source not given in paper, was sublimed and recrystallized from alcohol several times.
Estimated Errors:
Ambient temperature: T/K: precision ±0.2 (Compiler).
Mole fraction - Liquid (1): x1: ±0.002 (Compiler).
Components:
- Carbazole, $\ce{ C12H9N }$; [86-74-8] NIST WebBook
- Dibenzofuran, $\ce{ C12H8O }$; [132-64-9] NIST WebBook
Experimental Data
| $T$ ($\pu{K}$) | $T$ ($\pu{K}$) | $x_{1}$ | $x_{2}$ |
|---|---|---|---|
| 355.6 | 354.7 | 0.000 | 1.000 |
| 401.6 | 356.7 | 0.102 | 0.898 |
| 439.2 | 360.7 | 0.247 | 0.753 |
| 469.5 | 368.6 | 0.438 | 0.562 |
| 492.8 | 382.7 | 0.669 | 0.331 |
| 510.0 | 414.4 | 0.859 | 0.141 |
| 519.0 | 518.3 | 1.000 | 0.000 |
(a) Phase diagram, given in the original paper, shows formation of a complete series of solid solutions. Melting points of binary mixtures lie between those of the two pure components. Tin refers to the temperature at which crystallization begins; Tfin is the temperature at which crystallization of the solid solution concludes.
