IUPAC-NIST Solubilities Database

IUPAC-NIST Solubility Database
NIST Standard Reference Database 106

Solubility System: Pyrene with 1,3-Dinitrobenzene

Components:
   (1) 1,3-Dinitrobenzene; C6H4N2O4; [99-65-0]  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
363.2	0.000	1.000
358.2	0.087	0.913
354.2	0.146	0.854
357.2	0.169	0.831
359.7	0.210	0.790
360.2	0.238	0.762
362.2	0.298	0.702
362.5	0.335	0.665
362.2	0.379	0.621
363.7	0.414	0.586
364.7	0.437	0.563
365.0	0.446	0.554
365.7	0.501	0.499
366.0	0.504	0.496
365.2	0.524	0.476
364.2	0.551	0.449
376.2	0.570	0.430
367.2	0.571	0.429
376.2	0.609	0.391
384.2	0.659	0.341
395.7	0.723	0.277
423.2	1.000	0.000

Notes:
     Author reports formation of a 1:1 pyrene - 1,3-dinitrobenzene orangish-yellow molecular compound having a melting point temperature of 365.9 K, and a second 1:2 pyrene - 1,3-dinitrobenzene yellow compound with melting point of 362.5 K. Three eutectic points occur at x₁ = 0.130 and T/K = 352.2, x₁ = 0.366 and T/K = 361.2, and at x₁ = 0.565 and T/K = 362.2.

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).