IUPAC-NIST Solubility Database
NIST Standard Reference Database 106

Glass Ball as Bullet Solubility System: Pentane with Water
Components:
   (1) Water; H2O; [7732-18-5]  NIST Chemistry WebBook for detail
   (2) Pentane; C5H12; [109-66-0]  NIST Chemistry WebBook for detail
Original Measurements:
   Nelson, H.D.; De Ligny, C.L., Rec. Trav. Chim. Pays-Bas 1968, 87, 528-44.

 Variables:
   Temperature = 4-30 °C

 Prepared By:
   M.C. Haulait-Pirson

 Experimental Data:   (Notes on the Nomenclature)
  
Solubility of pentane in water
t/°C103 * g1/kg (compiler)105 * Mole Fraction x1
4.040.91.02 ± 0.20
10.042.91.07 ± 0.15
20.039.30.98 ± 0.19
25.040.51.01 ± 0.12
30.040.51.01 ± 0.17
 Method/Apparatus/Procedure:
   The saturation vessel is drawn in the original paper. (2) was saturated with (1) via the vapor phase: a few drops of (1) were put on the bottom of a tight-fitting flask containing a small flask filled with water. Complete saturation was reached by shaking overnight in an upright position. Samples were taken from the aqueous solution with a microsyringe through the septum and injected into the gas chromatograph detector. The gas chromatographic conditions are described in the paper.

 Source and Purity of Materials:
   (1) Phillips pure grade.
   (2) tap-water was refluxed for 8 hours in the presence of KMnO4 and KOH and distilled. The whole process was repeated once more.

 Estimated Errors:
   Solubility: error given above (90% probability interval)