IUPAC-NIST Solubility Database
NIST Standard Reference Database 106

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 Solubility System: Naphthalene with Thiophene

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Components:
   (1) Thiophene; C4H4S; [110-02-1]  NIST Chemistry WebBook for detail
   (2) Naphthalene; C10H8; [91-20-3]  NIST Chemistry WebBook for detail

Original Measurements:
   Choi, P.B.; McLaughlin, E., Ind. Eng. Chem. Fundam. 1983, 22, 46-51.

Variables:
   Temperature = Temperature

Prepared By:
   W.E. Acree, Jr.

Experimental Data:   (Notes on the Nomenclature)
  

T/K	Mole Fraction x1	Mole Fraction x2
303.2	0.3588	0.6412
318.2	0.5011	0.4989
322.7	0.5510	0.4490
336.8	0.7372	0.2628
341.1	0.8053	0.1947
348.1	0.9167	0.0833

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) 99.2 %, Eastman Kodak Chemical Company, Rochester, New York, USA, was passed over activated alumina and then recrystallized from toluene.
   (2) Gold Label, 99.9+ %, Aldrich Chemical Company, was used as received.

Estimated Errors:

   Temperature: T/K: precision ± 0.1. x₁: ± 0.0003.

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