IUPAC-NIST Solubility Database
NIST Standard Reference Database 106

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 Solubility System: Naphthalene with n-Octadecane

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Components:
   (1) n-Octadecane; C18H38; [593-45-3]  NIST Chemistry WebBook for detail
   (2) Naphthalene; C10H8; [91-20-3]  NIST Chemistry WebBook for detail

Original Measurements:
   Djordjevic, N.M., Thermochim. Acta 1991, 177, 109-118.

Variables:
   Temperature = Temperature

Prepared By:
   W.E. Acree, Jr.

Experimental Data:   (Notes on the Nomenclature)
  

T/K	Mole Fraction x1	Mole Fraction x2
325.1	0.5224	0.4776
330.0	0.5956	0.4044
342.5	0.7996	0.2004
346.0	0.8650	0.1350
347.0	0.8850	0.1150
348.7	0.9184	0.0816

Method/Apparatus/Procedure:
   Differential scanning calorimeter.
Mixtures (1.5 - 2.0 mg) of known concentration were weighed into alumina pans, which were then crimped to preclude sample loss during the heating process. Solubilities determined by measuring melting points of binary mixtures using a PerkinElmer DSC-2 differential scanning calorimeter and scan rate of 5 k/min.

Source and Purity of Materials:
   (1) Gold Label, 99+ %, Aldrich Chemical Company, Milwaukee, Wisconsin, USA, was used as received.
   (2) 99 %, Aldrich Chemical Company, was vacuum-distilled before use.

Estimated Errors:

   Temperature: T/K: precision ± 0.3 (compiler). x₁: ± 0.0003 (compiler).

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