raudoksid

Raudoksid refers to chemical compounds composed of iron and oxygen. The most common form is rust, which is a hydrated iron(III) oxide, typically with the formula Fe₂O₃·nH₂O. Rust forms when iron is exposed to oxygen and moisture, undergoing an electrochemical process. This process is a type of oxidation.

Other significant iron oxides include iron(II) oxide (FeO), iron(II,III) oxide (Fe₃O₄), also known as magnetite, and iron(III) oxide (Fe₂O₃), also known as hematite. Magnetite is a naturally occurring mineral and is strongly ferromagnetic. Hematite is also a mineral and is a primary ore for iron production.

Iron oxides have a wide range of applications. They are used as pigments in paints, concrete, and cosmetics due to their diverse colors, which can range from yellow and orange to red and brown. Iron(III) oxide nanoparticles have applications in magnetic resonance imaging (MRI) contrast agents and drug delivery systems. Iron oxides are also crucial in the production of steel and in various industrial processes. Their magnetic properties are exploited in magnetic storage media and other electronic components. The formation and properties of raudoksid are fundamental concepts in chemistry and materials science.