Iron oxide - Simple English Wikipedia, the free encyclopedia

Iron oxides are chemical compounds. There are sixteen known iron oxides. Iron oxides are used in pigments. It is used in both man-made and natural pigments.

Venetian red (haematite), Magnetite (Fe₃O₄), or a mixture of oxides make black or purple pigments. The umber, sienna and ochre are oxides or hydrated oxides of a yellow to chestnut colour.

Most iron oxide is mined as iron ore. Every year millions of tons go into blast furnaces to make iron.

Various iron oxides[change | change source]

• Iron(III) oxide, reddish, commonly known as rust, found in the earth as haematite
• Iron(II,III) oxide, magnetic, black, found in the earth as magnetite
• Iron(II) oxide, black, rare, flammable, not stable at room temperature
• Iron(II) hydroxide, dark green hydrated iron oxide

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