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Uses: Iron(III) oxide can be found in cake and dessert mixes, meat paste, soups, salmon and shrimp paste. Also used in cosmetics and tattoo inks.
Banned in Germany. Toxic at high doses, although it is highly unlikely many of us would consider feasting on a plate full of rust.
Description: Iron(III) oxide is also used as a major source of elemental iron in industry.
Alpha-iron(III) oxide has the corundum structure.
They are natural occurring minerals and are generally regarded as safe. Other names for iron oxidation are rust
E172 Iron Oxides and Hydroxides