Inorganic reactions

chemical reaction

thumb|A thermite mixture using iron(III) oxide

In chemistry, halogenation is a chemical reaction which introduces 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. This kind of conversion is in fact so common that a comprehensive overview is challenging. This article mainly deals with halogenation using elemental halogens (). Halides are also commonly introduced using halide salts and hydrogen halide acids. Many specialized reagents exist for introducing halogens into diverse substrates, e.g. thionyl chloride.

thermite reaction being a prominent example

chemical reaction

Carbonatation is a chemical reaction in which calcium hydroxide reacts with carbon dioxide and forms insoluble calcium carbonate:

chemical reaction

thermochemical process used to produce hydrogen

chemical reaction adding water to a mineral's crystal structure

Expansive chemical reaction damaging concrete

Chemical reaction

In chemistry, oxychlorination is a process for generating the equivalent of chlorine gas (Cl2) from hydrogen chloride and oxygen. This process is attractive industrially because hydrogen chloride is less expensive than chlorine.

thermochemical Cycle to produce Hydrogen from Water

thumb|Sedimentary layers of dolomitized limestone in an outcrop in the [[Philippines]] thumb|Mountains with dolomite rock formations in northern Italy Dolomitization is a geological process where magnesium ions replace calcium ions in the mineral calcite, resulting in the formation of dolomite.

water-splitting process

transformation of Fe(OH)2 into Fe3O4 with hydrogen release

thumb|Scheme for dehalogenation reaction (R = alkyl or [[aryl group, X = I, Cl, Br, F)]]

chemical reaction involving exchange of ionic bonds between four species

industrial process