IUPAC-NIST Solubility Database
NIST Standard Reference Database 106

Glass Ball as Bullet Solubility System: 1,3-Bis(trifluoromethyl)benzene with Water
Components:
   (1) Water; H2O; [7732-18-5]  NIST Chemistry WebBook for detail
   (2) 1,3-Bis(trifluoromethyl)benzene; C8H4F6; [402-31-3]  NIST Chemistry WebBook for detail
Original Measurements:
   Strachan, A.N.; Field, J.P.; Fleming, K.A., Int. Solvent Extr. Conf., (Proc.), Vol. 2, 1980, page paper 80-2, 6 pp.

 Variables:
   Temperature = One temperature

 Prepared By:
   F. W. Getzen

 Experimental Data:   (Notes on the Nomenclature)
  
t/°C102 * g1/V2 [g dm**-3]104 * Concentration c1 [mol dm**-3]Concent. c1 Note106 * Mole Fraction x1x1 Note
254.0901.91b3.451a
 Notes:
   a  Calculated by compiler.
   b  Reported.

 Method/Apparatus/Procedure:
   An excess of 1,3-bis(trifluoromethy1) benzene was stirred with 100 ml water in a closed flask in a thermally regulated bath (±0.1°C) for 30 min. After phase separation and standing for several hours, two samples of known amounts were removed from the aqueous phase and extracted with hexane. The absorbances of the extracted samples were measured (265 nm) with a Pye Unicam SP 30 spectrophotometer. Hexane solutions of the solute is known concentrations were used to establish the extinction coefficient (246 dm3mol-1cm-1). The procedure was repeated to give a total of four concentration measurements.

 Source and Purity of Materials:
   (1) Fluorochem Limited 97-100%; redistilled and middle cut used.
   (2) Distilled.

 Estimated Errors:
   Solubility: ± 3% (authors).
   Temperature: ±0.1 K (authors).