IUPAC-NIST Solubilities Database

IUPAC-NIST Solubility Database
NIST Standard Reference Database 106

Solubility System: Phenanthrene with Thianthrene

Components:
   (1) Thianthrene; C12H8S2; [92-85-3]  NIST Chemistry WebBook for detail
   (2) Phenanthrene; C14H10; [85-01-8]  NIST Chemistry WebBook for detail

Original Measurements:
   Mayer, M.M.; Howell, W.J.; Tomasko, D.L.; Eckert, C.A., J. Chem. Eng. Data 1990, 35, 446-449.

Variables:
   Temperature = Temperature

Prepared By:
   W.E. Acree, Jr.

Experimental Data:   (Notes on the Nomenclature)


T/K	Mole Fraction x₁	Mole Fraction x₂	Comment(s)
429	0.00	1.00	Solid Phase (2)
425	0.05	0.95	Solid Phase (2)
423	0.10	0.90	Solid Phase (2)
420	0.15	0.85	Solid Phase (2)
416	0.20	0.80	Solid Phase (2)
412	0.25	0.75	Solid Phase (2)
409	0.30	0.70	Solid Phase (2)
405	0.35	0.65	Solid Phase (2)
400	0.40	0.60	Solid Phase (2)
397	0.45	0.55	Solid Phase (2)
390	0.50	0.50	Solid Phase (2)
383	0.55	0.45	Solid Phase (2)
377	0.60	0.40	Solid Phase (2)
370	0.65	0.35	Solid Phase (2)
362	0.70	0.30	Solid Phase (2)
356	0.75	0.25	Solid Phase (2)
357	0.80	0.20	Solid Phase (1)
361	0.85	0.15	Solid Phase (1)
365	0.90	0.10	Solid Phase (1)
369	0.95	0.05	Solid Phase (1)
372	1.00	0.00	Solid Phase (1)

Notes:
     Authors state that system exhibits simple eutectic behavior.

Method/Apparatus/Procedure:
   Samples were equilibrated in an apparatus similar to the one used by Ott and co-workers (see J. Phys. Chem. 1962, 66, 1387). Temperature of the sample monitored with an Omega RTD probe inside a stainless steel tube that went down through the center of the pyrex tube. Samples heated above their melting point temperature, and time-temperature cooling curves were measured.

Source and Purity of Materials:
   (1) 99.5 %, Aldrich Chemical Company, Milwaukee, Wisconsin, USA, was recrystallized before use.
   (2) 99.5 %, Aldrich Chemical Company, was recrystallized before use.

Estimated Errors:

   Temperature: T/K: ± precision 0.5. x₁: ± 0.005 (compiler).