IUPAC-NIST Solubilities Database

IUPAC-NIST Solubility Database
NIST Standard Reference Database 106

Solubility System: Phenoxanthiin with Thianthrene

Components:
   (1) Phenoxanthiin; C12H8OS; [262-20-4]  NIST Chemistry WebBook for detail
   (2) Thianthrene; C12H8S2; [92-85-3]  NIST Chemistry WebBook for detail

Original Measurements:
   Cullinane, N.M.; Rees, W.T., Trans. Faraday Soc. 1940, 36, 506-514.

Variables:
   Temperature = Temperature

Prepared By:
   W.E. Acree, Jr.

Experimental Data:   (Notes on the Nomenclature)


T/K	Mole Fraction x₁	Mole Fraction x₂
429.9	0.000	1.000
426.8	0.100	0.900
415.3	0.301	0.699
399.5	0.487	0.513
378.7	0.692	0.308
357.4	0.811	0.189
337.2	0.900	0.100
326.1	0.930	0.070
328.3	0.954	0.046
328.9	1.000	0.000

Method/Apparatus/Procedure:
   Mixtures were placed in small capillary tubes. Temperature was slowly varied with ample time given for equilibration. Transition temperatures determined by visual observations. Reported temperatures verified by repetitive measurements.

Source and Purity of Materials:
   (1) Synthesized by the authors, was purified by sublimation and recrystallized from alcohol.
   (2) Purity and chemical source not given, was purified by sublimation and recrystallized from acetone.

Estimated Errors:

   Temperature: T/K: ± precision 0.2 (compiler). x₁: ± 0.002 (compiler).