IUPAC-NIST Solubilities Database

IUPAC-NIST Solubility Database
NIST Standard Reference Database 106

Solubility System: Dibenzofuran with Benzene

Components:
   (1) Benzene; C6H6; [71-43-2]  NIST Chemistry WebBook for detail
   (2) Dibenzofuran; C12H8O; [132-64-9]  NIST Chemistry WebBook for detail

Original Measurements:
   Domanska, U.; Groves, F.R., Jr.; McLaughlin, E., J. Chem. Eng. Data 1993, 38, 88-94.

Variables:
   Temperature = Temperature

Prepared By:
   W. E. Acree, Jr.

Experimental Data:   (Notes on the Nomenclature)


T/K	Mole Fraction x₁	Mole Fraction x₂
278.7	0.0000	1.0000
276.1	0.0635	0.9365
274.0	0.0856	0.9144
273.4	0.0934	0.9066
272.4	0.1122	0.8878
274.8	0.1239	0.8761
277.9	0.1363	0.8637
280.2	0.1463	0.8537
282.8	0.1599	0.8401
290.3	0.1978	0.8022
296.3	0.2346	0.7654
298.3	0.2480	0.7520
302.5	0.2813	0.7187
305.3	0.2995	0.7005
312.0	0.3559	0.6441
320.0	0.4486	0.5514
329.1	0.5791	0.4209
337.7	0.7045	0.2955
340.9	0.7570	0.2430
346.4	0.8346	0.1654
355.3	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) 99 %, Aldrich Chemical Company, Milwaukee, Wisconsin, USA, was recrystallized from toluene.
   (2) 99+ %, Aldrich Chemical Company, was fractionally distilled and stored over molecular sieves.

Estimated Errors:
   Solubility: x₁: ± 0.0003.
   Temperature: T/K: precision ± 0.1.

References:
   ¹W.E. Acree, Jr.