IUPAC-NIST Solubility Database
NIST Standard Reference Database 106

Glass Ball as Bullet Solubility System: 1-Ethylnaphthalene with Water
Components:
   (1) Water; H2O; [7732-18-5]  NIST Chemistry WebBook for detail
   (2) 1-Ethylnaphthalene; C12H12; [1127-76-0]  NIST Chemistry WebBook for detail
Original Measurements:
   Schwarz, F.P., J. Chem. Eng. Data. 1977, 22, 273-7.

 Variables:
   Temperature = 8.6 °C - 31.7 °C

 Prepared By:
   A. Maczynski

 Experimental Data:   (Notes on the Nomenclature)
   Method/Apparatus/Procedure:
   Two methods were used:
At 25°C the solubility of (1) in (2) was determined from UV absorption measurements and was used as a standard at other temperatures. At other temperatures the spectrofluorimetry method was used.
The sealed fluorescence cells contained 5 mL of the aqueous solution and an excess of (1) were rotated at least 72 h in a water bath, then removed, quickly wiped dry and placed in the fluorimeter.

 Source and Purity of Materials:
   (1) source not specified; better than 99.9 mole%, by glc; used as received.
   (2) distilled over KMnO4 and NaOH and passed through a Sephadex column.

 Estimated Errors:
   Solubility: see above.
   Temperature: ± 0.1°C