Compilation - Naphthalene with n-Hexane (IUPAC SDS Volume 59)
SDS Volume (2269)
Volume 59. Polycyclic Aromatic Hydrocarbons: Binary Non-aqueous Systems, Part II Solutes F-Z, p 85
Original Measurements
Domanska, U.; Pol. J. Chem. 1981, 55, 1715-1720.
Variables:
Room Temp: Temperature $\pu{K}$
Prepared by:
Method/Apparatus/Procedure:
Constant temperature bath and a precision thermometer.
Solubilities were measured using a dynamic method. Mixtures of known concentrations were sealed in thick-walled glass ampoules and placed in a constant temperature to equilibrate. Bath temperature was slowly increased by 2 K per hour. Solubility determined by visually noting the temperature at which the last trace of solid solute disappeared.
Source and Purity of Materials:
- Purity not specified, P.O.Ch., Gliwice, Poland, was vacuum sublimed to a melting temperature of 80.25°C.
- Initial purity not specified, Reachim, Poland, was dried over phosphorous pentoxide and fractionally distilled to a final purity of 99.9+%.
Estimated Errors:
Ambient temperature: T/K: precision ±0.01. x1: to 3 significant figs. (compiler).
Components:
- Naphthalene, $\ce{ C10H8 }$; [91-20-3] NIST WebBook
- Hexane, $\ce{ C6H14 }$; [110-54-3] NIST WebBook
Experimental Data
| $T$ ($\pu{K}$) | $x_{1}$ | $x_{2}$ |
|---|---|---|
| 282.05 | 0.063 | 0.937 |
| 286.35 | 0.072 | 0.928 |
| 289.55 | 0.084 | 0.916 |
| 289.85 | 0.082 | 0.918 |
| 292.45 | 0.094 | 0.906 |
| 295.45 | 0.104 | 0.894 |
| 298.65 | 0.119 | 0.881 |
| 302.45 | 0.138 | 0.862 |
| 306.75 | 0.163 | 0.837 |
| 310.25 | 0.189 | 0.811 |
| 317.05 | 0.243 | 0.757 |
| 319.25 | 0.277 | 0.723 |
| 319.65 | 0.276 | 0.724 |
| 324.15 | 0.340 | 0.660 |
| 325.75 | 0.368 | 0.632 |


