IUPAC-NIST Solubility Database
NIST Standard Reference Database 106

Glass Ball as Bullet Solubility System: Dichloromethane with Water

   (1) Water; H2O; [7732-18-5]  NIST Chemistry WebBook for detail
   (2) Dichloromethane; CH2Cl2; [75-09-2]  NIST Chemistry WebBook for detail

Original Measurements:
   Gossett, J.M., Environ. Sci. Technol. 1987, 21, 202-8.

   Temperature = 283 K - 308 K

Prepared By:
   A. L. Horvath

Experimental Data:   (Notes on the Nomenclature)
t/°CHenry's law constant [m**3 atm mol**-1]CV102 * Mass Fraction w1 (compiler) 103 * Mole Fraction x1 (compiler)
9.61.15 x 10-319.22.25134.862
17.51.31 x 10-319.92.74925.960
24.82.19 x 10-317.42.14224.842
35.63.26 x 10-32.372.21504.782
   1  CV = coefficient of variation (= 100 S.D./mean).

   A modification of the EPICS (Equilibrium Partitioning in Closed Systems) procedure was used for measuring Henry's law constants. A precise quantity of dichloromethane was injected into serum bottles which contained distilled water. The bottles were incubated for 18 - 24 hours  at four desired temperatures in a reciprocating shaker bath. The headspace concentrations of the EPICS bottles were measured using a gas chromatograph which was equipped with a flame ionization detector. The mean of the coefficient of  variation values was approximately 4.3 %.

Source and Purity of Materials:
   (1) Burdick & Jackson reagent, pesticide grade. Distilled in a glass set-up before use.
   (2) Distilled.

Estimated Errors:
   Solubility: See above.
   Temperature: ± 0.1 K.