Iron oxide: Difference between revisions

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Iron oxides and oxide-hydroxides are widespread in nature, play an important role in many geological and biological processes, and are widely used by humans, e.g., as [[iron ore]]s, [[pigment]]s, [[Catalysis|catalysts]], in [[thermite]] (see the diagram) and [[hemoglobin]]. 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. When used as a food coloring, it has [[E number]] E172.
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oxide-hydroxides are widespread in nature, play an important role in many geological and biological processes, and are widely used by humans, e.g., as [[iron ore]]s, [[pigment]]s, [[Catalysis|catalysts]], in [[thermite]] (see the diagram) and [[hemoglobin]]. 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. When used as a food coloring, it has [[E number]] E172.
 
==Oxides==