Ferric chloride

Iron(III) chloride is used in sewage treatment and drinking water production as a coagulant and flocculant. In this application, FeCl 3 in slightly basic water reacts with the hydroxide ion to form a floc of iron(III) hydroxide, or more precisely formulated as FeO(OH)− , that can remove suspended materials.

It is also used as a leaching agent in chloride hydrometallurgy, for example in the production of Si from FeSi (Silgrain process).

Another important application of iron(III) chloride is etching copper in two-step redox reaction to copper(I) chloride and then to copper(II) chloride in the production of printed circuit boards.

Iron(III) chloride is used as catalyst for the reaction of ethylene with chlorine, forming ethylene dichloride (1,2-dichloroethane), an important commodity chemical, which is mainly used for the industrial production of vinyl chloride, the monomer for making PVC.

Graphite is widely used with such media thanks to its full corrosion resistance up to 200°C for phenolic resin impregnated graphite. Our grade GT KELITE+ provide excellent performances for such applications.

When use of ferric chloride, caustic soda is also involved. GT develop grade which can simultaneously resist to caustic soda and ferric chloride is harshest condition unlike traditional graphite impregnated materials. Check this out here.

Care should be given to possible erosion with some applications having solid particles.

GT developed C-HARD feature to avoid wear of graphite and extend lifetime.

We can proceed to corrosion test or provide coupon for test on request here.

Equipment frequently used


Materials frequently used


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