IUPAC-NIST Solubility Database
NIST Standard Reference Database 106

Glass Ball as Bullet Solubility System: Styrene with Water
Components:
   (1) Water; H2O; [7732-18-5]  NIST Chemistry WebBook for detail
   (2) Styrene; C8H8; [100-42-5]  NIST Chemistry WebBook for detail
Original Measurements:
   Banerjee, S.; Yalkowsky, S.H.; Valvani, S.C., Environ. Sci. Technol. 1980, 14, 1227-9.

 Variables:
   Temperature = 25 °C

 Prepared By:
   G.T. Hefter

 Experimental Remarks:
   The solubility of styrene in water was reported to be 1.54 × 10–3 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 0.0160 g(1)/100 g sln and 2.77 × 10–5 respectively.

 Experimental Data:   (Notes on the Nomenclature)
   Method/Apparatus/Procedure:
   Experiments were performed in sealed stainless steel centrifuge tubes. An excess of styrene 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 high-performance liquid chromatography using a Waters M6000A instrument fitted with a C18 Bondapak column. The mobile phase was a mixture of methanol/water or acetonitrile/water. 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) Aldrich; purity not specified.
   (2) Distilled.

 Estimated Errors:
   Solubility: ± 5.7% rel. (representing one std. dev.)
   Temperature: ± 0.2°C