IUPAC-NIST Solubilities Database

IUPAC-NIST Solubility Database
NIST Standard Reference Database 106

Solubility System: Pyrene with 1,4-Dinitrobenzene

Components:
   (1) 1,4-Dinitrobenzene; C6H4N2O4; [100-25-4]  NIST Chemistry WebBook for detail
   (2) Pyrene; C16H10; [129-00-0]  NIST Chemistry WebBook for detail

Original Measurements:
   Shinomiya, C., J. Chem. Soc. Japan 1940, 15, 259-270.

Variables:
   Temperature = Temperature

Prepared By:
   W.E. Acree, Jr.

Experimental Data:   (Notes on the Nomenclature)


T/K	Mole Fraction x₁	Mole Fraction x₂
446.7	0.000	1.000
432.2	0.182	0.818
422.7	0.285	0.715
415.2	0.334	0.666
414.2	0.378	0.622
403.2	0.446	0.554
400.7	0.464	0.536
389.2	0.516	0.484
388.2	0.540	0.460
387.2	0.565	0.435
386.7	0.581	0.419
386.2	0.587	0.413
386.2	0.598	0.402
385.2	0.605	0.395
382.7	0.640	0.360
384.5	0.651	0.349
384.2	0.660	0.340
388.2	0.668	0.332
402.2	0.716	0.284
395.5	0.740	0.260
417.2	0.934	0.066
423.2	1.000	0.000

Notes:
     Author reports formation of a 1:1 pyrene - 1,4-dinitrobenzene bright red molecular compound having an incongruent melting point temperature. A eutectic point occurs at x₁ = 0.637 and T/K = 380.7, and a peritectic point occurs at x₁ = 0.520 and T/K = 387.7.

Method/Apparatus/Procedure:
   No experimental details given in paper.

Source and Purity of Materials:
   (1) Purity and chemical source were not specified in paper.
   (2) Purity and chemical source were not specified in paper.

Estimated Errors:

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