IUPAC-NIST Solubility Database
NIST Standard Reference Database 106

Glass Ball as Bullet Solubility System: 1-Methylbenz[a]anthracene with Water
Components:
   (1) Water; H2O; [7732-18-5]  NIST Chemistry WebBook for detail
   (2) 1-Methylbenz[a]anthracene; C19H14; [2498-77-3]  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.

 Variables:
   Temperature = 27 °C

 Prepared By:
   M.C. Haulait-Pirson

 Experimental Remarks:
   The best value recommended by the authors is 5.5 × 10-5 g(1) L-1 (2).
Assuming 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)
  
Solubility of 1-methylbenz[a]anthracene in water
t/°C105 * g1/V2 [g/L]
275.5 ± 0.2
275.4 ± 0.4
275.5 ± 0.2
 Method/Apparatus/Procedure:
   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 138.5-139.0 °C (cf. ref 2).
   (2) Dust-free.

 Estimated Errors:
   Solubility: See above.
   Temperature: ± 3 °C

 References:
   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.