Chemistry:Hemihydrate

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Short description: Solid substance containing one water molecule per two unit cells

In chemistry, a hemihydrate (or semihydrate) is a hydrate whose solid contains one molecule of water of crystallization per two other molecules, or per two unit cells. An example of this is CaSO
4
 · 0.5H2O
or 2CaSO
4
 · H2O
, which is the hemihydrate of CaSO
4
.

References