IUPAC-NIST Solubility Database
NIST Standard Reference Database 106

Glass Ball as Bullet Solubility System: p-Xylene with Water
Components:
   (1) Water; H2O; [7732-18-5]  NIST Chemistry WebBook for detail
   (2) p-Xylene; C8H10; [106-42-3]  NIST Chemistry WebBook for detail
Original Measurements:
   Sanemasa, I.; Araki, M.; Deguchi, T.; Nagai, H., Bull. Chem. Soc. Jpn. 1982, 55, 1054-62.

 Variables:
   Temperature = 15 °C - 45 °C

 Prepared By:
   G.T. Hefter

 Experimental Data:   (Notes on the Nomenclature)
  
Solubility of p-xylene in water
t/°C103 * Concentration c1 [mol dm**-3]g1/100 g solution (compiler)g1/100 g soln. Note (compiler)105 * Mole Fraction x1 (compiler)x1 Comp Note
151.48b0.0157a2.67a
251.53 ± 0.070.0163a2.76a
351.61 ± 0.080.0172a2.92a
451.66 ± 0.050.0178a3.02a
 Notes:
   a  Assuming solution densities to be the same as those of pure water at the same temperature (ref 1).
   b  No error given.

 Method/Apparatus/Procedure:
   The apparatus is similar to an earlier design (ref 2) and is described in detail in the paper. 100-200 cm3 of (2) and 10-20 cm3 of liquid (1) were placed in separate but connected thermostatted flasks. After thermal equilibrium was established a recirculating stream of air was used to vaporize liquid (1) and to transport the vapor to the flask containing (2). Five 10 cm3 aliquots were withdrawn into separatory funnels. The concentration of (1) in (2) was then determined by extraction into chloroform followed by UV-spectrophotometry. Standards for the spectrophotometry were prepared by weight from pure liquid solutes.

 Source and Purity of Materials:
   (1) Analytical reagent grade (Wako Pure Chemical Ind. Ltd.), stated purity 98.0%, used without further purification.
   (2) Redistilled; no further details given.

 Estimated Errors:
   Solubility: see table, type of error not specified.
   Temperature: ± 0.1°C

 References:
   1Kell, G.S., J. Chem. Eng. Data 1975, 20, 97.
   2Sanemasa, I.; Araki, M.; Deguchi, Y.; Nagai, H. Chem. Lett. 1981, 225-8.