IUPAC-NIST Solubility Database
NIST Standard Reference Database 106

Glass Ball as Bullet Solubility System: Dibenz[a,h]anthracene with Salt water
Components:
   (1) Dibenz[a,h]anthracene; C22H14; [58-70-3]  NIST Chemistry WebBook for detail
   (2) Salt water; ; []  NIST Chemistry WebBook for detail
Original Measurements:
   Krasnoschchekova, R.Ya.; Pakhapill, Yu.A.; Gubergrits, M.Ya., Khim. Tverd. Topl. 1977, 11(2), 133-6.

 Variables:
   Temperature = 25 °C   
pH = Salinity: 6 g/kg sln (ref. 1)
   Concentration = Salinity: 6 g/kg sln (ref. 1)

 Prepared By:
   M. Kleinschmidt and D. Shaw

 Experimental Remarks:
   The solubility of dibenz[a,h]anthracene in salt water was reported to be 21.13 µg/L.

The corresponding mass percent and mole fraction, x1, calculated by the compilers are 2.064 × 10–6 g(1)/100 g sln and 1.397 × 10–9 assuming a solution density of 1.004 kg/L.

Experimental Data:   (Notes on the Nomenclature)
   Method/Apparatus/Procedure:
   1 L of a 0.5 g/L solution of the hydrocarbon in acetone was distributed over the inside surface of a 1-L round-bottomed flask; the acetone was evaporated with gentle heating. 0.5 L water (or salt water) was added to the dried residue, and the solution was stirred for 6 hr and allowed to settle for 16-18 hr. The upper layer (about 0.3 L) was taken for analysis. The solution was centrifuged twice at 7000 g to remove suspended particles. The hydrocarbon was extracted with benzene and concentrated by evaporation, then purified using thin-layer chromatography. Spectrometric analysis of an octane solution of the hydrocarbon was done using the quasilinear luminescence spectra.

 Source and Purity of Materials:
   (1) Not given.

 Estimated Errors:
   Solubility: ± 1.14; type of error not specified.
   Temperature: ± 1 °C

 References:
   1Krasnoschchekova, R.Ya.; Gubergrits, M.Ya., Neftekhimiya 1973, 13, 885.