Iron oxide Red 190
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Molecular Structure
Detailed Description
Iron(III) oxide or ferric oxide is the inorganic compound with the formula Fe2O3. It is one of the three main oxides of iron, the other two being iron(II) oxide (FeO), which is rare, and iron(II,III) oxide (Fe3O4), which also occurs naturally as the mineral magnetite. As the mineral known as hematite, Fe2O3 is the main source of the iron for the steel industry. Fe2O3 is ferromagnetic, dark red, and readily attacked by acids. Rust is often called iron(III) oxide, and to some extent this label is useful, because rust shares several properties and has a similar composition. To a chemist, rust is considered an ill-defined material, described as hydrated ferric oxide.
Identifiers
CAS number 1309-37-1 Y
PubChem 518696
ChemSpider 21106565 Y
UNII 1K09F3G675 Y
ChEBI CHEBI:50819 Y
RTECS number NO7400000
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- Iron oxide Red 190
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