SDS Volume (1712)

Volume 58. Polycyclic Aromatic Hydrocarbons: Binary Non-aqueous Systems, Part I Solutes A-E, p 272

Original Measurements

Anderson, B. D.; Ph.D. Dissertation, University of Kansas, Lawrence, KS, 1978.

Variables:

Room Temp: 298 $\pu{K}$

Prepared by:

W.E. Acree, Jr.

Method/Apparatus/Procedure:

Constant temperature bath, rotator, thermometer, and an ultraviolet/visible spectrophotometer. Excess solute and solvent placed in glass vials and allowed to equilibrate for several days at constant temperature. Attainment of equilibrium verified by repetitive measurements. Aliquots of saturated solutions transferred through a course filter into tared volumetric flasks, weighed and diluted with methanol. Concentrations determined spectrophotometrically at 356 nm.

Source and Purity of Materials:

1. 99+%, Aldrich Chemical Company, Milwaukee, Wisconsin, USA, was recrystallized from acetone-heptane mixtures.
2. puriss, 99.5%, Fluka Chemical Corporation, Ronkonkoma, New York, USA, was stored over molecular sieves to remove trace water.

Estimated Errors:

Ambient temperature: T/K: ±0.1 (compiler).
Mass concentration (m/v) (1): c₁: ±3% (relative error, compiler).