SDS Volume (3246)

Volume 67. Halogenated Ethanes and Ethenes with Water, p 565

Original Measurements

Hutchinson, C. A.; Lyon, A. M.; Columbia University Report A-745, July 1, 1943.

Variables:

Room Temp: 298 $\pu{K}$

Prepared by:

A.L. Horvath

Method/Apparatus/Procedure:

A mixture of 1 to 15 volume ratio of heavy water and 1,2-dibromoethane was introduced into an equilibration flask and then lowered into a waterbath thermostat. The assembly was shaken mechanically for about 90 minutes at constant temperature. The amount of heavy water in the organic phase was determined by a modified Karl Fischer titration method. The determination was done in triplicate. This procedure description was taken from a secondary source [1]. The original university report is no longer available.

Source and Purity of Materials:
  1. Source and purity not given.
  2. Probably a commercial reagent, further purified and dryed before use.
Estimated Errors:

Ambient temperature: ±0.05 K.
Mass concentration (m/v) (1): ±1.0 × 10-5. av. dev.

References

1 Eidinoff, M. L.; Joris, G. G.; Taylor, H. S.; Urey, H. C.; eds., Production of Heavy Water (McGraw_Hill, New York, 1955), p. 129.

Components:
  1. Water-d2, $\ce{ D2O }$; [7789-20-0] NIST WebBook
  2. 1,2-Dibromoethane, $\ce{ C2H4Br2 }$; [106-93-4] NIST WebBook
Experimental Data
$T$ (°C) $mol_{1}/\pu{100 g}$ (mol/g) 100w1 $x_{1}$
25 2.79 x 10-3 0.05595.22 x 10-3

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