IUPAC-NIST Solubility Database
NIST Standard Reference Database 106

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 Solubility System: Xanthene with Cyclohexane

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Components:
   (1) Xanthene; C13H10O; [92-83-1]  NIST Chemistry WebBook for detail
   (2) Cyclohexane; C6H12; [110-82-7]  NIST Chemistry WebBook for detail

Original Measurements:
   Coon, J.E.; Sediawan, W.B.; Auwaerter, J.E.; McLaughlin, E., J. Solution Chem. 1988, 16, 519-534.

Variables:
   Temperature = Temperature

Prepared By:
   W.E. Acree, Jr.

Experimental Data:   (Notes on the Nomenclature)
  

T/K	Mole Fraction x1	Mole Fraction x2
331.7	0.2049	0.7951
339.0	0.3064	0.6936
344.9	0.4103	0.5897
350.3	0.5133	0.4867
354.3	0.6174	0.3826
359.7	0.7216	0.2784

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 temperature at which the last trace of solid solute disappeared.

Source and Purity of Materials:
   (1) 99.65 %, Aldrich Chemical Company, Milwaukee, Wisconsin, USA, was used as received.
   (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)