Hydration
In chemistry, hydration is the condition of being combined with water.
Hydration can create a hydratefrom which water can be reextracted. When hydration occurs in a chemical reactionit is called a hydration reaction, in which water is permanently and chemically combined with a reactant in a way that it can no longer be reextracted.
An example of a hydration reaction is acid-catalyzed hydration of the carbon-carbon double bondin an alkene. H+ and OH- is added via Markovnikov's rule.
Hydration can cause hydrolysis.
An example of hydrate synthesis is hydration of a carbonyl group.
Hydration also is used to mean getting water into an organism, usually human. This is important when large amounts of body fluid are lost, such as by sweating. In this context, it is also called rehydration.
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This article is licensed under the GNU Free Documentation License. It uses material from the http://en.wikipedia.org/wiki/Hydration Wikipedia article Hydration.
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