IUPAC-NIST Solubility Database
NIST Standard Reference Database 106


Glass Ball as Bullet Solubility System: Anthracene with 2,6,10,15,19,23-Hexamethyltetracosane (squalane)

Components:
   (1) 2,6,10,15,19,23-Hexamethyltetracosane (squalane); C30H64; [111-01-3]  NIST Chemistry WebBook for detail
   (2) Anthracene; C14H10; [120-12-7]  NIST Chemistry WebBook for detail

Original Measurements:
   McCargar, J.W.; Acree, W.E., Jr., J. Pharm. Sci. 1987, 76, 572-574.

Variables:
   Temperature = 298 K

Prepared By:
   W. E. Acree, Jr.

Experimental Data:   (Notes on the Nomenclature)
  
t/°CMole Fraction x1Mole Fraction x2
25.00.004720.9953
Method/Apparatus/Procedure:
   Constant temperature bath, calorimetric thermometer, and an ultraviolet/visible spectrophotometer. Excess solute and solvent placed in amber glass bottles and allowed to equilibrate for several days at constant temperature. Attainment of equilibrium verified by repetitive measurements. Aliquots of saturated  solutions transferred through a coarse filter into tared volumetric flasks, weighed and diluted with tetrachloromethane. Concentrations determined spectrophotometrically at 356 nm.

Source and Purity of Materials:
   (1) Gold Label, 99.9+ %, Aldrich Chemical Company, Milwaukee, Wisconsin, USA, used as received.
   (2) 99 %, Aldrich Chemical Company, was used as received.

Estimated Errors:
   Solubility: x1: ± 1 % (relative error).
   Temperature: T/K: precision ± 0.05.

References:
   1W.E. Acree, Jr.