IUPAC-NIST Solubility Database
NIST Standard Reference Database 106

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 Solubility System: Pyrene with n-Octadecane

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Components:
   (1) n-Octadecane; C18H38; [593-45-3]  NIST Chemistry WebBook for detail
   (2) Pyrene; C16H10; [129-00-0]  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
407.0	0.6061	0.3939
409.1	0.6905	0.3095
409.7	0.7028	0.2972
410.5	0.7329	0.2671
411.2	0.7612	0.2388
412.5	0.8235	0.1765
417.2	0.8986	0.1014
419.0	0.9502	0.0498

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)