IUPAC-NIST Solubility Database
NIST Standard Reference Database 106

Glass Ball as Bullet Solubility System: 10-Methylbenz[a]anthracene with Water

   (1) Water; H2O; [7732-18-5]  NIST Chemistry WebBook for detail
   (2) 10-Methylbenz[a]anthracene; C19H14; [2381-15-9]  NIST Chemistry WebBook for detail

Original Measurements:
   Davis, W.W.; Krahl, M.E.; Cloves, G.H.A., J. Am. Chem. Soc. 1942, 64, 108-10.

   Temperature = 27 °C

Prepared By:
   M.C. Haulait-Pirson

Experimental Remarks:

   The solubility of 10-methylbenz[a]anthracene in water at 27°C was reported to be 5.5 × 10–5 g(1) L–1(2).

(Four identical results have been obtained)

With the assumption that 1.00 L sln = 1.00 kg sln, the corresponding mass percent and mole fraction, x1, calculated by the compiler are 5.5 × 10–6 g(1)/100 g sln and 4.1 × 10–11.

Experimental Data:   (Notes on the Nomenclature)
   The method consisted of preparing serial dilutions of a suspension of (1) in (2) and determining nephelometrically the amount of (1) per unit volume beyond which further dilution caused no reduction in light scattering, which remained equal to that of pure (2). A Bausch and Lomb Dubosque colorimeter model 100-mm was employed. Many details are reported in ref. 1.

Source and Purity of Materials:
   (1) Prepared at Harvard University; m.p. range 140.0-140.5 °C (cf. ref 2).
   (2) Dust-free.

Estimated Errors:
   Solubility: ± 0.5 × 10-5 g(1) dm-3(2)
   Temperature: ± 3 °C

   1Davis, W.W.; Parker, Jr., T.V., J. Am. Chem. Soc. 1942, 64, 101.
   2Davis, W.W.; Krahl, M.E.; Cloves, G.H.A., J. Am. Chem. Soc. 1940, 62, 3086.