No, it is hardly soluble in sodium hydroxide though it is amphoteric. It's better in (hydrochloric) acid.
Iron II oxide: FeO Iron III oxide: Fe2O3
FeO for ferrous oxide, ( iron(II) oxide); Fe2O3 for ferric oxide, (iron(III) oxide) and Fe3O4 for ferrous ferric oxide, (iron (II,III) oxide)
Formula of 3 types of Iron oxides: Iron(II) oxide= FeO Iron(III) oxide= Fe2O3 Iron(II,III) oxide= Fe3O4
Iron oxide is only soluble when placed in concentrated mineral acids. It is insoluble in organic and water based solvents.
Nitric acid(HNO3)
FeO for ferrous oxide, ( iron(II) oxide); Fe2O3 for ferric oxide, (iron(III) oxide) and Fe3O4 for ferrous ferric oxide, (iron (II,III) oxide)
The name of the compound Fe3O4 is called iron (II,III) oxide. (Wikipedia)
iron (III) oxide
No, it is hardly soluble in sodium hydroxide though it is amphoteric. It's better in (hydrochloric) acid.
It stands for the charge on the iron ion. In Iron III oxide iron has a 3+ charge.
Iron (III) acetate is not soluble in water.
FeO for ferrous oxide, ( iron(II) oxide); Fe2O3 for ferric oxide, (iron(III) oxide) and Fe3O4 for ferrous ferric oxide, (iron (II,III) oxide)
The preparation of iron(III) oxide is simple.
FeO for ferrous oxide, ( iron(II) oxide); Fe2O3 for ferric oxide, (iron(III) oxide) and Fe3O4 for ferrous ferric oxide, (iron (II,III) oxide)
Actually there are several iron oxides, iron(II)oxide, iron(III)oxide and iron(II,III)oxide, and iron(III)oxide comes in four so-called 'phases'.All of these are compounds of iron with oxygen.
There are a number of compounds of iron wuth oxygen, iron(I) oxide, ferrous oxide, FeO iron (II,III) oxide ferric ferrous oxide, Fe3O4 iron(III) oxide, ferric oxide, Fe2O3.