What are the properties and uses of iron chloride in industrial applications?

Iron chloride, also known as ferric chloride, is a chemical compound with the formula FeCl3. It is commonly used in industrial applications as a coagulant in wastewater treatment, as a catalyst in chemical reactions, and as an etchant in the production of printed circuit boards. Iron chloride is also used in the production of pigments, in the manufacturing of dyes, and as a disinfectant. Its properties include being a dark brown, hygroscopic solid that is soluble in water and has a strong acidic odor.