IUPAC-NIST Solubility Database
NIST Standard Reference Database 106

Glass Ball as Bullet Solubility System: Naphthalene with 2-Propanone
Components:
   (1) 2-Propanone; C3H6O; [67-64-1]  NIST Chemistry WebBook for detail
   (2) Naphthalene; C10H8; [91-20-3]  NIST Chemistry WebBook for detail
Original Measurements:
   Ward, H.L., J. Phys. Chem. 1926, 30, 1316-1333.

 Variables:
   Temperature = Temperature

 Prepared By:
   W.E. Acree, Jr.

 Experimental Data:   (Notes on the Nomenclature)
  
T/KMole Fraction x1Mole Fraction x2
279.50.1270.873
287.50.1640.836
297.40.2270.773
305.80.3000.700
312.50.3660.634
312.50.3660.634
320.40.4650.535
326.10.5400.460
331.70.6230.377
335.90.6930.307
340.40.7700.230
342.70.8050.195
 Method/Apparatus/Procedure:
   Constant temperature bath and a precision thermometer.
Solubilities were measured using a dynamic method. Mixtures of known concentrations were sealed in thick-walled glass tubes and placed in a constant temperature to equilibrate with gentle rotation to thoroughly mix contents. Bath temperature was slowly increased and solubility visually determined by 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 and source not specified, was recrystallized several times from methanol to give a melting temperature of 80.05-80.10 ºC.
   (2) Purity and source not specified, was stored over calcium chloride and sodium amalgam, distilled collecting fraction at 56.1 ºC.

 Estimated Errors:

   Temperature: T/K: precision ± 0.1. x1: to 3 significant figs. (compiler).