Iron(II,III) oxide

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Iron(II,III) oxide
Posting date : Dec 23, 2011
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Free Member Scince Dec 23, 2011
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CHEMICAL | Inorganic
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28-
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Iron(II,III) oxide is the chemical compound with formula Fe3O4. It is one of a number of iron oxides. It is found in nature as the mineral magnetite. It contains both Fe2+ and Fe3+ ions and is sometimes formulated as FeO.Fe2O3. It is encountered in the laboratory as a black powder. It exhibits permanent magnetism and is ferrimagnetic, but is sometimes incorrectly described as ferromagnetic. Its most extensive use is as a black pigment which is synthesised rather than being extracted from the naturally occurring mineral as the particle size and shape can be varied by the method of production.
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