IUPAC-NIST Solubility Database
NIST Standard Reference Database 106

Glass Ball as Bullet Solubility System: cis-1,2-Dimethylcyclohexane with Water
Components:
   (1) Water; H2O; [7732-18-5]  NIST Chemistry WebBook for detail
   (2) cis-1,2-Dimethylcyclohexane; C8H16; [2207-01-4]  NIST Chemistry WebBook for detail
Original Measurements:
   McAuliffe, C., J. Phys. Chem. 1966, 70, 1267-75.

 Variables:
   Temperature = 25 °C

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

 Experimental Remarks:
   The solubility of cis-1,2-dimethylcyclohexane in water at 25°C was reported to be 6.0 g(1)/106 g(2).

The corresponding mass percent and mole fraction, x1, calculated by the compilers are 0.00060 g(1)/100 g sln and 9.6 × 10–7.

Experimental Data:   (Notes on the Nomenclature)
   Method/Apparatus/Procedure:
   In a 250-mL bottle, 10-20 mL of (1) was vigorously shaken for 1 hr, or magnetically stirred for 1 day, with 200 mL of (2) at 25°C. The bottle was set aside for two days to allow droplets of undissolved (1) to separate. Absence of emulsion was checked microscopically. A sample of the hydrocarbon-saturated water was withdrawn with a Hamilton syringe and gas liquid chromatographed in conjuction with a flame-ionization detector.

 Source and Purity of Materials:
   (1) Phillips Petroleum or Columbia Chemical; used as received.
   (2) distilled.

 Estimated Errors:
   Solubility: 0.8 g(1)/106 g(2) (standard deviation of mean)
   Temperature: ± 1.5°C