IUPAC-NIST Solubility Database
NIST Standard Reference Database 106

Glass Ball as Bullet Solubility System: Naphthalene with Methylbenzene
Components:
   (1) Methylbenzene; C7H8; [108-88-3]  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
281.40.1830.817
290.50.2350.765
308.00.3700.630
317.10.4650.535
325.30.5610.439
340.60.7370.263
 Method/Apparatus/Procedure:
   Constant temperature bath and a precision thermometer.
Mixtures of known concentrations sealed in glass tubes 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 and source not specified, was recrystallized several times from methanol to give a melting temperature of 80.05-80.10 ºC.
   (2) Analyzed Grade, source not given, was fractionally distilled before use.

 Estimated Errors:

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