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iron iii chloride melting point, also known as FeCl3 is an ionic compound salt with an oxidation state of +3. It is commonly called ferric chloride.
In organic chemistry, iron iii chloride is used in a variety of acid-catalyzed reactions. These include Friedel-Crafts reaction of aromatics and the chlorination of aromatic compounds. It also has the ability to bind oxygen-containing ligands in a qualitative test for phenols.
The simplest stoichiometric reaction of iron iii chloride is with chlorine to form ethylene dichloride (EDC), an important commodity chemical. Ethylene dichloride is a precursor of vinyl chloride, the monomer for making PVC.
Another application of iron iii chloride is as a coagulant and flocculant in water treatment. In slightly basic water, FeCl3 reacts with the hydroxide ion to form a floc of “iron iii hydroxide” (FeO(OH)), which can remove suspended materials.
This reaction is reversible, but the HCl solution should be filtered before reuse. It should be stored in closed containers and at a low pH.
Anhydrous iron iii chloride is highly corrosive and will stain many surfaces dark brown. It is also extremely irritant to sensitive tissues.
It is considered toxic by ingestion and inhalation, as well as being an eye irritant. It can cause severe burns if the pH is too low.
It has the ability to oxidize iron and can be produced from iron or ore in closed loop industrial processes. It is also a common catalyst for organic synthesis and a popular etchant for printed circuit board.