IUPAC-NIST Solubilities Database

IUPAC-NIST Solubility Database
NIST Standard Reference Database 106

Solubility System: Biphenyl with Indole

Components:
   (1) Indole; C8H7N; [120-72-9]  NIST Chemistry WebBook for detail
   (2) Biphenyl; C12H10; [92-52-4]  NIST Chemistry WebBook for detail

Original Measurements:
   Szafranski, A.M.; Wyrzykowska-Stankiewicz, D., Int. DATA Ser., Ser. A 1984, 46.

Variables:
   Temperature = Temperature

Prepared By:
   W. E. Acree, Jr.

Experimental Data:   (Notes on the Nomenclature)


T/K	Mole Fraction x₁	Mole Fraction x₂
324.95	0.0000	1.0000
318.75	0.0778	0.9222
312.65	0.1596	0.8404
306.45	0.2456	0.7544
302.05	0.3055	0.6945
302.70	0.3362	0.6638
310.95	0.4317	0.5683
317.65	0.5326	0.4674
323.85	0.6393	0.3607
329.75	0.7524	0.2476
333.90	0.8356	0.1644
335.75	0.8724	0.1276
337.00	0.8973	0.1027
341.99	1.0000	0.0000

Method/Apparatus/Procedure:
   Constant temperature bath and a precision thermometer. Mixtures of known concentrations sealed in glass ampoules and placed in constant temperature to equilibrate. Samples were rotated while bath temperature slowly increased. Solubility determined by noting the temperature at which the last trace of solid solute disappeared.

Source and Purity of Materials:
   (1) Pure Grade, Glovkhimreaktiv, Kharkov, USSR, was recrystallized thrice from methanol and zone refined.
   (2) Pure Grade, Inst. Chem. Przerobki Wegla, Zabre, Poland, was recrystallized thrice from methanol.

Estimated Errors:
   Solubility: x₁: ± 0.0005.
   Temperature: T/K: precision ± 0.1.

References:
   ¹W.E. Acree, Jr.