IUPAC-NIST Solubility Database
NIST Standard Reference Database 106

Glass Ball as Bullet Solubility System: Naphthalene with Ethanol
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:
   Sunier, A.A., J. Phys. Chem. 1930, 34, 2582-2597.

 Variables:
   Temperature = Temperature

 Prepared By:
   W.E. Acree, Jr.

 Experimental Data:   (Notes on the Nomenclature)
  
T/KMole Fraction x1Mole Fraction x2
288.90.02920.9708
299.00.04220.9578
308.40.05950.9405
316.30.08290.9171
320.20.10000.9000
330.30.18160.8184
336.20.29940.7006
340.90.49650.5035
 Method/Apparatus/Procedure:
   Constant temperature bath and a precision thermometer.
Mixtures of known concentrations were sealed in ampoules and placed in constant temperature to equilibrate. Samples were rotated while bath temperature slowly increased. Solubility determined by visual noting the temperature at which the last trace of solid solute disappeared. Measurements repeated several times to verify results.

 Source and Purity of Materials:
   (1) Purity not specified, Eastman Kodak Company, Rochester, New York, USA, was recrystallized several times from methanol.
   (2) 95 %, source not specified, was refluxed over lime and distilled before use.

 Estimated Errors:

   Temperature: T/K: precision ± 0.1. x1: ± 0.0002 (compiler).