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:
   Tsonopoulos, C.; Wilson, G.M., A. I. Ch. E. J. 1983, 29, 990-9.

 Variables:
   Temperature = 313-473 K
   Pressure = 0.03-3.0 Mpa

 Prepared By:
   G.T. Hefter

 Experimental Remarks:
   The three phase critical point was reported to be 541.7K, 9.42 MPa and x1 = 2.528 x 10-2 (10.1 g(1)/100 g sln, compiler).

The authors are also report equations to their own and literature data over the range 273-542K, viz.
     ln x1 = -170.04018 + 6922.912/T + 24.398795 lnT
     ln x2 = -1.64055 - 2029.41/T + 0.00900544 T

 Experimental Data:   (Notes on the Nomenclature)
  
Solubility of benzene in water
T/KPressure [MPa]g1/100 g solution (compiler)103 * Mole Fraction x1
313.150.03054 (a)0.1920.4435
373.150.2758 (a)0.4120.949
423.151.0549 (a)1.052.42
473.153.020 (a)2.345.40
Solubility of water in benzene
T/KPressure [MPa]g2/100 g solution (compiler)g2/100 g soln. Note (compiler)102 * Mole Fraction x2
313.150.03054 (a)0.112b0.471,0.501
373.150.2758 (a)0.448b1.81,2.08
423.151.0549 (a)1.647.13
473.153.020 (a)4.2618.5
 Notes:
   Table 1  a  Absolute pressure
   Table 1  b  Average value

 Method/Apparatus/Procedure:
   All experimental details are given in an Appendix deposited in a Documentation Centre rather than in the oiginal paper. The solubility of (1) in (2) was measured by gas chromatography, whilst that of (2) in 91) was measured by Karl Fischer titration.

 Source and Purity of Materials:
   (1) No details given.
   (2) No details given.

 Estimated Errors:
   Solubility: ± 5% relative; repeatability of replicable analyses.
   Temperature: not stated.
   Pressure: ± 1%; type or error not stated.