IUPAC-NIST Solubility Database
NIST Standard Reference Database 106

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 Solubility System: Fluorene with Pyridine

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Components:
   (1) Fluorene; C13H10; [86-73-7]  NIST Chemistry WebBook for detail
   (2) Pyridine; C5H5N; [110-86-1]  NIST Chemistry WebBook for detail

Original Measurements:
   Choi, P.B.; McLaughlin, E., Ind. Eng. Chem. Fundam. 1983, 22, 46-51.

Variables:
   Temperature = Temperature

Prepared By:
   W.E. Acree, Jr.

Experimental Data:   (Notes on the Nomenclature)
  

T/K	Mole Fraction x1	Mole Fraction x2
311.5	0.1979	0.8021
327.1	0.2936	0.7064
340.2	0.4002	0.5998
349.0	0.4909	0.5091
359.2	0.6127	0.3873

Method/Apparatus/Procedure:
   Constant temperature bath and a precision thermometer.
Mixtures of known concentrations sealed in glass ampoules and placed in constant temperature to equilibrate. Samples were rotated while bath temperature slowly increased. Solubility determined by visual noting the same temperature at which the last trace of solid solute disappeared.

Source and Purity of Materials:
   (1) 97.8%, Eastern Chemical Company, Smithtown, New York, USA, was passed over activated alumina and recrystallized from toluene.
   (2) Gold Label, 99.9+ %, Aldrich Chemical Company, was used as received.

Estimated Errors:

   Temperature: T/K: precision ± 0.1. x₁: ± 0.0003 (compiler).

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Last updated: February 18, 2015 (Created: August 17, 2007)