Iron Oxide
Iron oxides are chemical compounds composed of iron and oxygen. All together, there are sixteen known iron oxides and oxyhydroxides.
Iron oxides and oxide-hydroxides are widespread in nature, play an important role in many geological and biological processes, and are widely utilized by humans, e.g., as iron ores, pigments, catalysts, in thermite (see the diagram). Common rust is a form of iron(III) oxide. Iron oxides are widely used as inexpensive, durable pigments in paints, coatings and colored concretes. Colors commonly available are in the "earthy" end of the yellow/orange/red/brown/black range.
Read more about Iron Oxide: Oxides, Hydroxides, Oxide/hydroxides
Famous quotes containing the word iron:
“Manhattan. Sometimes from beyond the skyscrapers, across the hundreds of thousands of high walls, the cry of a tugboat finds you in your insomnia in the middle of the night, and you remember that this desert of iron and cement is an island.”
—Albert Camus (1913–1960)