IUPAC-NIST Solubilities Database

IUPAC-NIST Solubility Database
NIST Standard Reference Database 106

Solubility System: Phenanthrene with 1,3,5-Trinitrobenzene

Components:
   (1) 1,3,5-Trinitrobenzene; C6H6N3O6; [99-35-4]  NIST Chemistry WebBook for detail
   (2) Phenanthrene; C14H10; [85-01-8]  NIST Chemistry WebBook for detail

Original Measurements:
   Kremann, R., Monatsch. Chem. 1908, 29, 863-890.

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)
394.2	0.000	1.000	Solid Phase (2)
384.2	0.117	0.883	Solid Phase (2)
379.2	0.185	0.815	Solid Phase (2)
388.2	0.271	0.729	1:1 Compound
397.2	0.421	0.579	1:1 Compound
398.2	0.529	0.471	1:1 Compound
397.2	0.581	0.419	1:1 Compound
393.2	0.645	0.355	1:1 Compound
390.2	0.682	0.318	1:1 Compound
384.2	0.728	0.272	1:1 Compound
375.2	0.787	0.213	1:1 Compound
364.2	0.826	0.174	1:1 Compound
364.2	0.856	0.144	Solid Phase (1)
367.2	0.878	0.122	Solid Phase (1)
370.2	0.915	0.085	Solid Phase (1)
373.2	0.942	0.058	Solid Phase (1)
376.2	1.000	0.000	Solid Phase (1)

Notes:
     Phase diagram indicates formation of a 1:1 phenanthrene - 1,3,5-trinitrobenzene molecular compound having a melting point of circa T/K = 398.2. The two eutectic points occur at x₁ = 0.21 and T/K = 377.9, and at x₁ = 0.845 and T/K = 362.9.

Method/Apparatus/Procedure:
   Binary mixtures prepared by weight. While the experimental details were not given in the paper, compiler speculates (based upon quantity of material used) that the sample was sealed in a glass container, temperature slowly varied, and the phase diagram determined by visually noting the temperature at which the last/first crystal of solid disappeared/appeared.

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 ± 0.5 (compiler). x₁: ± 0.002 (compiler).