Iron 3 Chloride Definition and Uses : Iron (III) chloride, also called ferric chloride, is an industrial-scale metal. The chemical formula of the compound is FeCl 3. The color of iron (III) chloride crystals depends on the viewing angle, with reflected light the crystals appear dark green, but with transmitted light they appear purple-red. Iron 3 Chloride Anhydrous iron (III) chloride is fusible in moist air forming mists of hydrated hydrogen chloride. Iron 3 Chloride Rarely, some fumaroles are observed in their natural state, primarily known as the mineral molysite.

Iron 3 Chloride When dissolved in water, iron (III) chloride undergoes hydrolysis and gives off heat in an exothermic reaction. Iron 3 Chloride The resulting Iron 3 Chloride is a brown, acidic and corrosive solution, used as a coagulant in wastewater treatment and drinking water production, and as an etchant for copper-based metals in printed circuit boards. Iron 3 Chloride  Anhydrous iron (III) chloride is a very strong Lewis acid and is used as a catalyst in organic synthesis.

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