IUPAC-NIST Solubility Database
NIST Standard Reference Database 106

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 Solubility System: Naphthalene with Ethanol

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Components:
   (1) Ethanol; C2H6O; [64-17-5]  NIST Chemistry WebBook for detail
   (2) Naphthalene; C10H8; [91-20-3]  NIST Chemistry WebBook for detail

Original Measurements:
   Speyers, C.L., Am. J. Sci. 1902, 14, 293-302.

Variables:
   Temperature = Temperature

Prepared By:
   W.E. Acree, Jr.

Experimental Data:   (Notes on the Nomenclature)
  

T/K	Mole Fraction x1	Mole Fraction x2
273.2	0.0180	0.9820
281.8	0.0213	0.9787
305.0	0.0482	0.9518
320.1	0.0970	0.9030
343.0	0.6423	0.3577

Method/Apparatus/Procedure:
   Experimental procedure only marginally described by author. Excess solute and solvent were equilibrated in a constant temperature water bath for between 10-30 minutes. Saturated solution was withdrawn through a coarse filter and analyzed by specific gravity. Author noted that evaporation to dryness and weighing the residue was subject to too much decomposition.

Source and Purity of Materials:
   (1) Purity not given, Kahlbaum, was recrystallized from alcohol to a melting point temperature of 80.1 ºC.
   (2) Marked absolute, from Eimer and Amend and Chas. Cooper and Co., dried over calcium oxide and distilled before use.

Estimated Errors:

   Temperature: T/K: precision ± 0.1. x₁: ± 8 % (relative error, compiler).

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