Iron(III) chloride

Iron(III) chloride, also called ferric chloride, is an industrial scale commodity chemical compound, with the formula FeCl3 and with iron in the +3 oxidation state. The colour of iron(III) chloride crystals depends on the viewing angle: by reflected light the crystals appear dark green, but by transmitted light they appear purple-red. Anhydrous iron(III) chloride is deliquescent, forming hydrated hydrogen chloride mists in moist air. It is rarely observed in its natural form, the mineral molysite, known mainly from some fumaroles.
When dissolved in water, iron(III) chloride undergoes hydrolysis and gives off heat in an exothermic reaction. The resulting brown, acidic, and corrosive solution is used as a flocculant in sewage treatment and drinking water production, and as an etchant for copper-based metals in printed circuit boards. Anhydrous iron(III) chloride is a fairly strong Lewis acid, and it is used as a catalyst in organic synthesis.

This page uses material from the related Wikipedia article which is released under the Creative Commons Attribution-Share-Alike License 3.0.

Looking to buy Iron(III) chloride?

Enquire now about bulk ordering

If you’re interested in further information or purchasing this product please submit your details in the form below and we will get back to you shortly. If you would rather discuss the product by phone please contact us on +44 (0) 1494 728458.