IUPAC-NIST Solubility Database
NIST Standard Reference Database 106

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 Solubility System: Xanthene with 1,2,3,4-Tetrahydronaphthalene

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Components:
   (1) Xanthene; C13H10O; [92-83-1]  NIST Chemistry WebBook for detail
   (2) 1,2,3,4-Tetrahydronaphthalene; C10H12; [119-64-2]  NIST Chemistry WebBook for detail

Original Measurements:
   Coon, J.E.; Auwaerter, J.E.; McLaughlin, E., Fluid Phase Equilibr. 1989, 44, 305-345.

Variables:
   Temperature = Temperature

Prepared By:
   W.E. Acree, Jr.

Experimental Data:   (Notes on the Nomenclature)
  

T/K	Mole Fraction x1	Mole Fraction x2
304.6	0.2202	0.7798
318.3	0.2876	0.7124
331.8	0.4022	0.5978
340.9	0.5014	0.4986
348.9	0.6047	0.3953
349.9	0.6286	0.3714

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) 99.6+ %, Aldrich Chemical Company, was stored over molecular sieves to remove trace water.

Estimated Errors:

   Temperature: T/K: precision ± 0.1. x₁: ± 0.0003.

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