IUPAC-NIST Solubility Database
NIST Standard Reference Database 106


Glass Ball as Bullet Solubility System: Phenanthrene with Artificial seawater

Components:
   (1) Phenanthrene; C14H10; [85-01-8]  NIST Chemistry WebBook for detail
   (2) Artificial seawater (ref 1); ; []  NIST Chemistry WebBook for detail

Original Measurements:
   Eganhouse, R.P.; Calder, J.A., Geochim. Cosmochim. Acta 1976, 40, 555-61.

Variables:
   Temperature = 25.0 °C   
pH = Salinity: 35 g/kg sln
   Concentration = Salinity: 35 g/kg sln

Prepared By:
   M. Kleinschmidt and W. Shiu

Experimental Remarks:

   The solubility of phenanthrene in seawater is reported to be 0.71 mg/kg the corresponding mass percent and mole fraction, x1, calculated by the compilers are 7.1 × 10–5 g(1)/100 g sln and 7.4 × 10–8.

Graphical results for other salinities are also reported.

Experimental Data:   (Notes on the Nomenclature)
   Method/Apparatus/Procedure:
   Equilibrium flask: 1-dm3 Erlenmeyer flask with ground glass stopper and sidearm tap at base plugged with glass wool. The mixtures were agitated 12+ hrs at 215 rpm on a New Brunswick gyrotary shaker; a 24 hr stationary equilibrium period followed. Hydrocarbons were extracted with doubly-distilled hexane 3 times; concentrated by evaporation, with losses checked against an internal standard. Analysis: gas chromatography.

Source and Purity of Materials:
   Analytical grade salt for artificial seawater solution, reagent grade. Water: doubly distilled.

Estimated Errors:
   Solubility: ± 0.025 (95% confidence interval)
   Temperature: ± 0.5 °C

References:
   1Lyman, J.; Fleming, R.H.; J. Mar. Res. 1940, 3, 135.