ferriikkloridi

Ferriikkloridi is the common name for iron(III) chloride, a chemical compound with the formula FeCl3. It exists as a solid, often appearing as yellowish-brown crystals. In its anhydrous form, it is a crystalline solid that readily absorbs moisture from the air, becoming hydrated. The hydrated form, typically FeCl3·6H2O, is a more common and stable form encountered in many applications.

Iron(III) chloride is highly soluble in water, and its aqueous solutions are acidic due to hydrolysis. This acidity is a key property exploited in some of its uses. It is also soluble in various organic solvents such as ethanol and acetone. Ferriikkloridi is a corrosive substance and should be handled with care, as it can cause burns on skin and damage to materials.

Historically, ferriikkloridi has found application as a mordant in dyeing textiles, helping to fix dyes to fabrics. It is also widely used in water treatment as a flocculant, where it helps to aggregate suspended particles in water, making them easier to remove. In electronics, it is employed as an etchant for copper in the production of printed circuit boards. Furthermore, it serves as a catalyst in certain organic synthesis reactions, particularly in Friedel-Crafts acylation and alkylation. Its presence in medicine, though less common now, has included use as an astringent and styptic.