IUPAC-NIST Solubility Database
NIST Standard Reference Database 106

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 Solubility System: Naphthalene with Cyclohexane

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Components:
   (1) Cyclohexane; C6H12; [110-82-7]  NIST Chemistry WebBook for detail
   (2) Naphthalene; C10H8; [91-20-3]  NIST Chemistry WebBook for detail

Original Measurements:
   Heric, E.L; Yeh, K.N., J. Chem. Eng. Data 1970, 15, 13-17.

Variables:
   Temperature = Temperature

Prepared By:
   W.E. Acree, Jr.

Experimental Data:   (Notes on the Nomenclature)
  

T/K	Mole Fraction x1	Mole Fraction x2
292.95	0.1345	0.8655
301.83	0.1720	0.8280
306.71	0.2122	0.7878
318.28	0.3463	0.6537
326.75	0.4849	0.5151
334.01	0.6244	0.3756
340.06	0.7455	0.2545
346.75	0.8762	0.1238

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 visual noting the same temperature at which the last trace of solid solute disappeared.

Source and Purity of Materials:
   (1) Reagent Grade, Baker Chemical Company, USA, was used as received.
   (2) Reagent Grade, Baker Chemical Company, was stored over phosphorous pentoxide and distilled shortly before use.

Estimated Errors:

   Temperature: T/K: precision ± 0.03. x₁: ± 0.0001.

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Last updated: February 18, 2015 (Created: August 17, 2007)