IUPAC-NIST Solubilities Database

IUPAC-NIST Solubility Database
NIST Standard Reference Database 106

Solubility System: Biphenyl with Octacosane

Components:
   (1) Octascosane; C28H58; [630-02-4]  NIST Chemistry WebBook for detail
   (2) Biphenyl; C12H10; [92-52-4]  NIST Chemistry WebBook for detail

Original Measurements:
   Vitali, G., Int. DATA Ser., Ser. A 1984, 94.

Variables:
   Temperature = Temperature

Prepared By:
   W. E. Acree, Jr.

Experimental Data:   (Notes on the Nomenclature)


T/K	Mole Fraction x₁	Mole Fraction x₂
334.7	0.000	1.000
334.5	0.014	0.986
334.3	0.029	0.971
334.0	0.048	0.952
333.5	0.078	0.922
332.3	0.147	0.853
331.0	0.233	0.767
329.5	0.330	0.670
329.0	0.415	0.585
327.3	0.495	0.505
326.2	0.540	0.460
326.2	0.601	0.399
331.1	0.694	0.306
333.4	0.750	0.250
335.7	0.813	0.187
337.5	0.872	0.128
339.9	0.928	0.072
341.2	0.967	0.033
341.4	0.977	0.023
341.9	0.989	0.011
342.1	0.997	0.003
342.3	1.000	0.000

Method/Apparatus/Procedure:
   Constant temperature bath and a precision thermometer. Mixtures of known concentrations put in open containers and placed in constant temperature to equilibrate. Samples were rocked while bath temperature slowly decreased. Solubility determined by visual noting the temperature at which the last trace of solid solute appeared.

Source and Purity of Materials:
   (1) 99 %, Ega, Steinheim, Germany, was used as received.
   (2) 98 %, Ega, Steinheim, Germany, was used as received.

Estimated Errors:
   Solubility: x₁: ± 0.001.
   Temperature: T/K: precision ± 0.25.

References:
   ¹W.E. Acree, Jr.