IUPAC-NIST Solubility Database
NIST Standard Reference Database 106

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 Solubility System: Dibenzofuran with Thiophene

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Components:
   (1) Thiophene; C4H4S; [110-02-1]  NIST Chemistry WebBook for detail
   (2) Dibenzofuran; C12H8O; [132-64-9]  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
314.2	0.4220	0.5780
319.3	0.4757	0.5243
322.3	0.5083	0.4917
332.8	0.6347	0.3653
337.0	0.6960	0.3040
341.1	0.7585	0.2415

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 noting the temperature at which the last trace of solid solute disappeared.

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

Estimated Errors:
   Solubility: x₁: ± 0.0003.
   Temperature: T/K: precision ± 0.1.

References:
   ¹W.E. Acree, Jr.

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