IUPAC-NIST Solubility Database
NIST Standard Reference Database 106


Glass Ball as Bullet Solubility System: Iodomethane with Water

Components:
   (1) Water; H2O; [7732-18-5]  NIST Chemistry WebBook for detail
   (2) Iodomethane; CH3I; [74-88-4]  NIST Chemistry WebBook for detail

Original Measurements:
   Glew, D.N., Ph. D. Thesis, University of Cambridge, Cambridge, U. K. 1952, 245 pp.

Variables:
   Temperature = 273 K - 323 K
   Pressure = 273 K - 323 K

Prepared By:
   A. L. Horvath

Experimental Data:   (Notes on the Nomenclature)
  
t/°CHenry's law constant [m**3 atm mol**-1]102 * Mass Fraction w1 (compiler) 103 * Mole Fraction x1 (compiler)P1 c-1 [dm**-3 mmHg mol**-1]
0.011.676 x 10-38.4711.611274
5.042.218 x 10-36.408.601686
10.202.842 x 10-34.996.622160
15.123.592 x 10-33.955.192730
19.954.447 x 10-33.194.163380
24.935.342 x 10-32.663.464060
29.936.224 x 10-32.292.974730
34.917.290 x 10-31.962.535540
39.878.395 x 10-31.702.196380
44.889.421 x 10-31.521.967160
49.7610.58 x 10-31.361.758040
Method/Apparatus/Procedure:
   The experiment was performed in an Ostwald type solubility apparatus consisting of a gas burette and a solubility pipette. The gas burette containing iodomethane and the solubility pipette filled with water were connected and allowed to equilibrate in a  thermostat bath. The volume, pressure, and temperature were monitored and Henry's law constants were calculated. A summary of the experiment is given elsewhere (ref. 1).

Source and Purity of Materials:
   (1) British Drug House, washed with KOH solution, dried, redistilled and dried again with Ca metal turnings.
   (2) Gas free, deionizes by ion exchange resin.

Estimated Errors:
   Solubility: ± 0.5 %.
   Temperature: ± 0.2 K.

References:
   1 Glew, D. N.; Moelwyn-Hughes, E. A. Faraday Discussion Chem. Soc. 1953, 150.