Halogenation
Chemical reaction which adds one or more halogen elements to a compound / From Wikipedia, the free encyclopedia
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"Fluorination" redirects here. For the addition of fluoride to drinking water, see Water fluoridation.
For the addition of chlorine, hypochlorite, etc. to drinking water, see Water chlorination.
In chemistry, halogenation is a chemical reaction which introduces of one or more halogens into a chemical compound. Halide-containing compounds are pervasive, making this type of transformation important, e.g. in the production of polymers, drugs.[1] This kind of conversion is in fact so common that a comprehensive overview is challenging. This article mainly deals with halogenation using elemental halogens (F2, Cl2, Br2, I2). Halides are also commonly introduced using salts of the halides and halogen acids.[clarification needed] Many specialized reagents exist for and introducing halogens into diverse substrates, e.g. thionyl chloride.