SDS Volume
Volume 58. Polycyclic Aromatic Hydrocarbons: Binary Non-aqueous Systems, Part I Solutes A-E, p 128
Source Publication
Acree Jr., W. E.; Zvaigzne, A. I.; Tucker, S. A.; Fluid Phase Equilib. 1994, 92, 233-253.
Conditions:
Room Temp:
298
$\pu{K}$
initial mol 3 (binary solvent):
0.0 - 1.0
Compiler:
Methodology:
Constant temperature bath, calorimetric thermometer, and an ultraviolet/visible spectrophotometer. Binary solvent mixtures were prepared by weight. Excess solute and solvent placed in amber glass bottles and allowed to equilibrate for several days at constant temperature. Attainment of equilibrium verified by several repetitive measurements and by approaching equilibrium from supersaturation.. Aliquots of saturated solutions transferred through a coarse filter into tared volumetric flasks, weighed and diluted with methanol. Concentrations determined spectrophotometrically at 356 nm.
Sample Information:
- Gold Label, 99.9+%, Aldrich Chemical Company, Milwaukee, Wisconsin, USA, used as received.
- HPLC Grade, 99.7+%, Aldrich Chemical Company.
- 99+%, anhydrous, Aldrich Chemical Company.
Measurement Errors:
Ambient temperature: T/K: ±0.05.
Mass concentration (m/v) (1): x3(s): ±0.0001. x1: ±1.5% (relative error).
System Components:
- Anthracene, $\ce{ C14H10 }$; [120-12-7] NIST WebBook
- Heptane, $\ce{ C7H16 }$; [142-82-5] NIST WebBook
- 1-Octanol, $\ce{ C8H18O }$; [111-87-5] NIST WebBook
Experimental Data
| $T$ (°C) | $x^{\rm{init}}_{3}$ | $x_{1}$ | $x_{3}$ |
|---|---|---|---|
| 25.0 | 0.0000 | 1.571 x 10-3 | 0.0000 |
| 25.0 | 0.1018 | 1.738 x 10-3 | 0.1016 |
| 25.0 | 0.1925 | 1.835 x 10-3 | 0.1921 |
| 25.0 | 0.3897 | 2.002 x 10-3 | 0.3889 |
| 25.0 | 0.4808 | 2.057 x 10-3 | 0.4798 |
| 25.0 | 0.5865 | 2.098 x 10-3 | 0.5853 |
| 25.0 | 0.7841 | 2.135 x 10-3 | 0.7824 |
| 25.0 | 0.8958 | 2.163 x 10-3 | 0.8939 |
| 25.0 | 1.0000 | 2.160 x 10-3 | 0.9978 |
x3(s): initial mole fraction of binary solvent mixture; x1: mole fraction solubility of the solute; x3: mole fraction of component 3 in the ternary solution.
