IUPAC-NIST Solubilities Database

IUPAC-NIST Solubility Database
NIST Standard Reference Database 106

Solubility System: Naphthalene with 2,4-Dinitroaniline

Components:
   (1) 2,4-Dinitroaniline; C6H5N3O4; [97-02-9]  NIST Chemistry WebBook for detail
   (2) Naphthalene; C10H8; [91-20-3]  NIST Chemistry WebBook for detail

Original Measurements:
   Shinomiya, C., Nihon Kagakkai Shi. 1938, 59, 922-926.

Variables:
   Temperature = Temperature

Prepared By:
   W.E. Acree, Jr.

Experimental Data:   (Notes on the Nomenclature)


T/K	Mole Fraction x₁	Mole Fraction x₂
452.7	0.000	1.000
446.7	0.058	0.942
444.2	0.133	0.867
440.7	0.226	0.774
438.2	0.263	0.737
431.2	0.363	0.637
427.2	0.413	0.587
427.2	0.446	0.554
427.2	0.488	0.512
427.2	0.509	0.491
426.7	0.554	0.446
425.2	0.608	0.392
423.7	0.614	0.386
413.2	0.770	0.230
404.2	0.851	0.149
354.2	0.964	0.036
353.2	0.985	0.015
353.2	1.000	0.000

Notes:
     Compiler: A miscibility gap is observed in system for 0.410 < x₁ < 0.510.

Method/Apparatus/Procedure:
   No experimental details given in paper. Compiler speculates that the transition temperatures were probably determined by visually observing the temperature corresponding to the first crystal formation (or complete liquefication).

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 ± 0.3 (compiler). x₁: ± 0.002 (compiler).