Application
Iron(III) Chloride, also known as ferric chloride (FeCl3), serves a multifaceted purpose in various industries due to its unique chemical properties. It acts primarily as an essential component in water purification, where its rapid hydrolysis makes it an effective coagulant for treating municipal and industrial wastewater. By forming flocs that capture suspended particles, ferric chloride simplifies the removal of impurities. Additionally, it functions as a key oxidant in the production of indigo blue dye and as an etching agent in the manufacturing of printed circuit boards. Furthermore, ferric chloride is used as a catalyst in chemical reactions, notably in the synthesis of ethylene dichloride for producing PVC. Despite limited data on its application in mineral processing, ferric chloride has demonstrated potential as a depressant in barite-celestite and niobium-zirconium separations, although its lack of selectivity can occasionally hinder mineral flotation processes.