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IUPAC-NIST Solubility Database
NIST Standard Reference Database 106
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/°C
10
2
* Mass Fraction w
1
(compiler)
10
3
* Mole Fraction x
1
(compiler)
10
2
* w
1
/M
1
[mol g**-1]
25
2.174 x 10
-2
3.222
1.207 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.