IUPAC-NIST Solubility Database
NIST Standard Reference Database 106

Glass Ball as Bullet Solubility System: Naphthalene with n-Heptane
Components:
   (1) n-Heptane; C7H16; [142-82-5]  NIST Chemistry WebBook for detail
   (2) Naphthalene; C10H8; [91-20-3]  NIST Chemistry WebBook for detail
Original Measurements:
   Lissi, E.A.; Abuin, E.B., Bol. Soc. Chil. Quim. 1981, 26, 19-34.

 Variables:
   Temperature = 293 K

 Prepared By:
   W.E. Acree, Jr.

 Experimental Data:   (Notes on the Nomenclature)
  
t/°CConcentration c1 [mol dm**-3]
20.00.60
 Method/Apparatus/Procedure:
   Constant temperature bath, centrifuge, thermometer, and a spectrofluorimeter.
Solubility determined indirectly from measured aqueous solubility and solute partition coefficient between n-heptane and water. Solute concentration in both phases, after equilibration and centrifugation, determined from the fluorescence intensity. This indirect method computes the solubility that is expected assuming that the dilute  solution behavior extrapolates up to saturation point.

 Source and Purity of Materials:
   (1) Purity not given, commercial sample of unspecified source, was used as received.
   (2) Purity and chemical source not given, purification procedure not specified.

 Estimated Errors:

   Temperature: T/K: ± 2. c1: Unknown.