The one missing item from most such tables is this factoid

Comparison of an interesting but largely neglected physical property which can be exploited in enriching heavy water:

                    H2O        D2O

melting point       0 C       3.84 C

compare that spread with the most used separation properties:

boiling point       100 C     101.41 C
density             1.0        1.106


Geeze Loise !!!  How could the yanks have missed this!


OK found this additional item:

Temp max density (°C)     4.0       11.6        
Viscosity (at 20°C )      1.25      1.005


... which offers yet another plausible separation factor to use in a combined enrichment scheme. The idea is that in the future, when wealth is shared to a degree that terrorism is no longer a threat - heavy water will be used, and 'home-made' by individuals who can in theory make it and their own energy from it - if they live near a large body of water.

SIDE NOTE: betcha didn't know this: Heavy water is 10+% more dense than ordinary water, a difference which is nearly impossible to notice in a sample which otherwise looks and tastes exactly like normal water. But do not taste it.

One of the few ways to demonstrate heavy water's different properties without equipment is to freeze and drop a cube into normal water.

Normal ice floats, but ice made from heavy water sinks in normal water!

Coors discovered an ice filtration method for beer which provides the other missing ingredient.

Jones


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