IUPAC-NIST Solubility Database
NIST Standard Reference Database 106

Glass Ball as Bullet Solubility System: Benzene with Water
Components:
   (1) Water; H2O; [7732-18-5]  NIST Chemistry WebBook for detail
   (2) Benzene; C6H6; [71-43-2]  NIST Chemistry WebBook for detail
Original Measurements:
   Banerjee, S.; Yalkowsky, S.H.; Valvani, S.C., Environ. Sci. Technol. 1980, 14, 1227-9.

 Variables:
   Temperature = One temperature: 25 °C

 Prepared By:
   G.T. Hefter

 Experimental Remarks:
   The solubility of benzene in water reported to be 2.24 x 10-2 mol/L sln. Assuming a solution density of 1.00 kg/L the corresponding mass per cent and mole fraction x1 solubilities, calculated by the compiler, are 0.175 g(1)/100 g sln and 4.05 x 10-4 respectively.

 Experimental Data:   (Notes on the Nomenclature)
   Method/Apparatus/Procedure:
   Experiments were performed in sealed stainless steel centrifuge tubes. An excess of 14C-labelled benzene was added to a tube containing distilled water, and the tube was sealed and allowed to equilibrate at 25 ± 0.2 °C with constant or intermittent shaking. Equilibration was generally complete within 1 week. The mixture was then centrifuged at 10,000 rpm for 60 min in a head preequilibrated to 25 ± 0.3 °C, following which aliquots of the solution were removed for analysis by liquid scintillation counting. The entire procedure was carried out at least twice for each compound, and each analysis was also conducted in duplicate.

 Source and Purity of Materials:
   (1) 14C-labelled benzene: New England Nuclear, used without further purification.
   (2) Distilled.

 Estimated Errors:
   Solubility: ± 0.7% rel. (representing one std. dev.)
   Temperature: ± 0.2 K