IUPAC-NIST Solubility Database
NIST Standard Reference Database 106

Glass Ball as Bullet Solubility System: Naphthalene with Sodium chloride and Water
Components:
   (1) Water; H2O; [7732-18-5]  NIST Chemistry WebBook for detail
   (2) Naphthalene; C10H8; [91-20-3]  NIST Chemistry WebBook for detail
   (3) Sodium chloride; NaCl; [7647-14-5]  NIST Chemistry WebBook for detail
Original Measurements:
   Paul, M.A., J. Am. Chem. Soc. 1952, 74, 5274-7.

 Variables:
   Temperature = 25 °C   
pH = Salinity: 13-64 g(3)/kg sln
   Concentration = Salinity: 13-64 g(3)/kg sln

 Prepared By:
   M. Kleinschmidt and W. Shiu

 Experimental Data:   (Notes on the Nomenclature)
  
Solubility of Naphthalene in Aqueous Sodium Chloride
t/°Cg2/kgg2/kg Note103 * g1/100 g solutiong1/100 g soln. Note106 * Mole Fraction x1x1 Note104 * n1/V2 [mol/L]
2512.40*3.01*4.27*2.37g-mol/L
2525.31*2.52*3.61*2.00 g-mol/L
2530.59*2.53*3.64*2.02 g-mol/L
2543.70*2.09*3.02*1.68 g-mol/L
2561.63*1.69*2.48*1.38 g-mol/L
 Notes:
   *  Calculated by compilers using density and other physical data for NaC1 solutions from ref 1.

 Method/Apparatus/Procedure:
   Equilibration flask: 50-mL glass-stoppered flask. The flask was heated in a hot-water bath until the hydrocarbon was melted, then shaken vigorously while cooling until excess hydrocarbon and recrystallized. The flask was then placed into a water bath thermostatically controlled at 25.00 ± 0.05°C for at least 48 hr, and shaken occasionally during that time. Samples were withdrawn with a 10-ml transfer pipet, diluted appropriately and analyzed using a spectrophotometer in the ultra-violet region of the spectrum.

 Source and Purity of Materials:
   (1) recrystallized from menthanol
   (2) reagent grade, dried at 120°C before weighing
   (3) redistilled.

 Estimated Errors:
   Solubility: ± 1%
   Temperature: ± 0.05°C

 References:
   1Weast, R.C.; CRC Handbook of Chemistry and Physics, 59th Edition; CRC Press 1978, pp D299-D300.