<P> Iron ( III ) oxide or ferric oxide is the inorganic compound with the formula Fe O. 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 ( Fe O ) , which also occurs naturally as the mineral magnetite . As the mineral known as hematite , Fe O is the main source of iron for the steel industry . Fe O is ferromagnetic , dark red , and readily attacked by acids . Iron ( III ) oxide is often called rust , and is acidic in nature 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 . </P>
<P> Iron ( III ) oxide or ferric oxide is the inorganic compound with the formula Fe O. 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 ( Fe O ) , which also occurs naturally as the mineral magnetite . As the mineral known as hematite , Fe O is the main source of iron for the steel industry . Fe O is ferromagnetic , dark red , and readily attacked by acids . Iron ( III ) oxide is often called rust , and is acidic in nature 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 . </P>
is iron iii oxide a solid liquid or gas
is iron iii oxide a solid liquid or gas
mineral
mineral