IUPAC-NIST Solubilities Database

IUPAC-NIST Solubility Database
NIST Standard Reference Database 106

Solubility System: Acenaphthene with Cyclohexane

Components:
   (1) Cyclohexane; C6H12; [110-82-7]  NIST Chemistry WebBook for detail
   (2) Acenaphthene; C12H10; [83-32-9]  NIST Chemistry WebBook for detail

Original Measurements:
   Choi, P.B.; Williams, C.P.; Buehring, K.G.; McLaughlin, E., J. Chem. Eng. Data 1985, 30, 403-409.

Variables:
   Temperature = Temperature

Prepared By:
   W. E. Acree, Jr.

Experimental Data:   (Notes on the Nomenclature)


T/K	Mole Fraction x₁	Mole Fraction x₂
303.35	0.0853	0.9147
307.35	0.1031	0.8969
312.05	0.1274	0.8726
316.45	0.1565	0.8435
320.95	0.1931	0.8069
325.65	0.2421	0.7579
329.95	0.2984	0.7016
334.65	0.3697	0.6303
339.85	0.4645	0.5355
346.45	0.5992	0.4008
354.45	0.7742	0.2258

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) 99.2 %, British Drug Houses, United Kingdom, was recrystallized and then zone refined.
   (2) Gold Label, 99.9+ %, Aldrich Chemical Company, was used as received.

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

References:
   ¹W.E. Acree, Jr.