9.8 Heavy Water, D2O

It is extensively used as a moderator in nuclear reactors and in exchange reactions for the study of reaction mechanisms.

It can be prepared by exhaustive electrolysis of water or as a by-product in some fertilizer industries. It is used for the preparation of other deuterium compounds, for example:


CaC2 + 2D2O → C2D2 + Ca(OD)2


SO3 + D2O → D2SO4


Al4C3 + 12D2O → 3CD4 + 4Al(OD)3


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