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:
   Schatzberg, P., J. Phys. Chem. 1963, 67, 776-9.

 Variables:
   Temperature = One temperature: 20 °C

 Prepared By:
   A. Maczynski, Z. Maczynska, and A. Szafranski

 Experimental Remarks:
   The solubility of water in benzene at 20 °C was reported to be 532 mg(2)/kg(1).
The corresponding mass percent and mole fraction calculated by the compilers are 0.0532 g(2)/100 g sln and 2.30 x 10-3.

 Experimental Data:   (Notes on the Nomenclature)
   Method/Apparatus/Procedure:
   In a serum cap-sealed 4-oz. Brown glass bottle immersed in a water bath, (1) was saturated with (2) at 20 ± 0.02 °C for 7 days. A 20-mL sample was withdrawn with a silicone-hydrophobized hypodermic syringe pushed about 2/3 of the way into the hydrocarbon liquid. Stabilized Karl Fischer reagent diluted to a titer of 1.0-1.3 mg(2)/mL was used to titrate (2) in (1) directly in the presence of methanol to a dead-stop end-point using a Beckman KF3 automatic titrimeter with a 5-mL miroburet.

 Source and Purity of Materials:
   (1) Matheson, Coleman and Bell Chromatoquality reagent 99+ mole%; used as received.
   (2) distilled and deionized.

 Estimated Errors:
   Solubility: ± 3 mg(2)/kg(1) (type of error not specified).
   Temperature: ± 0.02 K