IUPAC-NIST Solubility Database
NIST Standard Reference Database 106

Glass Ball as Bullet Solubility System: Diiodomethane with Water
Components:
   (1) Water; H2O; [7732-18-5]  NIST Chemistry WebBook for detail
   (2) Diiodomethane; CH2I2; [75-11-6]  NIST Chemistry WebBook for detail
Original Measurements:
   Hutchinson, C.A.; Lyon, A.M., Columbia University Report A-745, July 1, 1943.

 Variables:
   Temperature = 298 K

 Prepared By:
   A. L. Horvath

 Experimental Data:   (Notes on the Nomenclature)
  
t/°C102 * Mass Fraction w1 (compiler) 103 * Mole Fraction x1 (compiler)102 * w1/M1 [mol g**-1]
252.174 x 10-23.2221.207 x 10-3
 Method/Apparatus/Procedure:
   A 1 to 15 volume ratio mixture of water and diiodomethane was introduced into an equilibration flask and then the flask was lowered into a water thermostat bath. The assembly was shaken mechanically for about 90 minutes at constant temperature. The amount of water in the  organic phase was determined by a modified Karl Fischer titration method. The determination was done in triplicate.The description was taken from a secondary source (ref. 1). The original report is no longer available.

 Source and Purity of Materials:
   (1) Distilled.
   (2) Source not given, purified and dried before use.

 Estimated Errors:
   Solubility: ± 1.5 x 10-5 avg. dev.
   Temperature: ± 0.05 K.

 References:
   1 Eidinoff, M. L.; Jorris, G. G.; Taylor, H. S.;Urey, H. C., eds. "Production of Heavy Water," McGraw-Hill, New York, 1955, p. 129.