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Hemihydrate

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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. This is sometimes characterized as a solid that has one "half molecule" of water per unit cell. An example of this is calcium sulfate hemihydrate (CaSO4·0.5H2O or 2CaSO4·H2O), which is the hemihydrate of calcium sulfate (CaSO4).

References

  1. Kent, James A. (2007-10-08). Kent and Riegel's Handbook of Industrial Chemistry and Biotechnology. Springer Science & Business Media. p. 1096. ISBN 978-0-387-27842-1.
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