IUPAC-NIST Solubility Database
NIST Standard Reference Database 106

Glass Ball as Bullet Solubility System: Carbazole with n-Hexane
Components:
   (1) n-Hexane; C6H14; [110-54-3]  NIST Chemistry WebBook for detail
   (2) Carbazole; C12H9N; [86-74-8]  NIST Chemistry WebBook for detail
Original Measurements:
   McCargar, J.W.; Acree, W.E., Jr., J. Pharm. Sci. 1987, 17, 123-138.

 Variables:
   Temperature = 298 K

 Prepared By:
   W. E. Acree, Jr.

 Experimental Data:   (Notes on the Nomenclature)
  
t/°CMole Fraction x1Mole Fraction x2
25.00.0001390.9999
 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 course filter into tared volumetric flasks, weighed and diluted with methanol. Concentrations determined spectrophotometrically at 292 nm.

 Source and Purity of Materials:
   (1) 99 %, Aldrich Chemical Company, Milwaukee, Wisconsin, USA, recrystallized 3 times from absolute ethanol.
   (2) 99 %, Aldrich Chemical Company, was stored over molecular sieves and distilled shortly before use.

 Estimated Errors:
   Solubility: x1: ± 1.5 % (relative error).
   Temperature: T/K: ± 0.05.

 References:
   1W.E. Acree, Jr.