RaudIIIhüdroksiid

Raud(III)hüdroksiid, also known as ferric hydroxide, is an inorganic compound with the chemical formula Fe(OH)₃. It is a reddish-brown gelatinous precipitate that forms when soluble iron(III) salts are treated with a base. In aqueous solutions, it exists as colloidal particles.

Raud(III)hüdroksiid is practically insoluble in water. It is an amphoteric substance, meaning it can react with both acids and bases, although its acidic properties are weak. When heated, it decomposes to form iron(III) oxide and water. This decomposition is often represented by the equation 2Fe(OH)₃ → Fe₂O₃ + 3H₂O.

This compound plays a role in various natural processes, including the weathering of iron-containing minerals. Industrially, it is sometimes produced as an intermediate in the purification of iron salts or in the production of iron pigments. It can also be found in some water treatment processes. While not a common direct application, its formation and properties are relevant to understanding iron chemistry.