In its natural state, gypsum contains the water of crystallization bound in the form of hydrates.
3.
Akin to water of crystallization, hydrogen peroxide cocrystallizes with urea with the stoichiometry of 1 : 1.
4.
For example, various magnesium and calcium salts in sea water expand considerably on drying by taking on water of crystallization.
5.
Below 100 �C, these crystals will melt in their own water of crystallization and will tend to lose water slowly.
6.
However, even sodium chloride, which does not include water of crystallization, can exert considerable expansive forces as its crystals grow.
7.
The hydrate, with a varying proportion of water of crystallization, often approximating to a trihydrate, is a commonly used starting material in ruthenium chemistry.
8.
Upon heating, solid NaH 2 AsO 4 H 2 O, loses water of crystallization and converts to the pyroarsenate salt Na 2 H 2 As 2 O 7.
9.
Many organic molecules, as well as inorganic molecules, form crystals that incorporate water into the crystalline structure without chemical alteration of the organic molecule ( water of crystallization ).
10.
Water molecules may also be present in materials closely associated with individual molecules, as " water of crystallization ", or as water molecules which are static components of protein structure.
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