Black Rust
Posted on Tuesday, September 8, 2009 in Mens Belts
Why is Black Rust written Fe3O4 when Iron only has valencies of 1 and 2?
I have seen FeO (Iron II Oxide) and Fe2O3 (Iron III Oxide), but Fe3O4 (Iron II,III Oxide)? <----- Explain please?
Sorry i meant valencies of 2 and 3...
Both ferrous and ferric iron are foun in Fe3O4, its actually what gives the mineral form of this (magnetite) its strong magnetic properties.
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