IUPAC-NIST Solubility Database
NIST Standard Reference Database 106

Glass Ball as Bullet Solubility System: Dichloromethane with Water
Components:
   (1) Water; H2O; [7732-18-5]  NIST Chemistry WebBook for detail
   (2) Dichloromethane; CH2Cl2; [75-09-2]  NIST Chemistry WebBook for detail
Original Measurements:
   Lincoff, A.H.; Gossett, J.M., in Gas Transfer at Water Surfaces by Brutsaert, W. and Jirka, G.H., Eds., D. Reidel Publ. Co., Dordrecht, 1984, p. 17-25.

 Variables:
   Temperature = 293 K

 Prepared By:
   A. L. Horvath

 Experimental Remarks:
   loge H=-4191/T(K) + 8.200          (EPICS Method)

loge H=-4472/T(K) + 9.035          (Batch Air Stripping Method)

 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)Comment(s)
202.25 x 10-31.77863.826EPICS Method
201.97 x 10-32.03144.379Batch Air Stripping Method
 Method/Apparatus/Procedure:
   Henry's law constants were determined by EPICS and Batch Air Stripping methods. The Equilibrium Partitioning in Closed Systems (EPICS) technique compared the GL peak heights upon direct injection of headspace samples. For the Batch Air Stripping procedure, equal volume  samples were placed in serum bottles and allowed to reach equilibrium. The equilibrated headspaces containing concentrations proportional to original concentrations in the aqueous samples were analyzed. Full equilibrium was achieved in a few hours.

 Source and Purity of Materials:
   (1) Source and purity not given.
   (2) Distilled.

 Estimated Errors:
   Solubility: ± 5 - 10 %.
   Temperature: ± 0.1 K.