[s4kho]

Currently I want to produce ferrous sulfate (FeSO4) from ferric oxide(Fe2O3)
anyone knows how to produce it?

If i react Fe2O3 with H2SO4, isn't the product Fe2(SO4)3 , which is Fe3+ and minor FeSO4
How to isolate them one to another?

maybe is it possible to reduce Fe2(SO4)3 to FeSO4 by adding iron metal itself?

Thank you for you reply

[jcjlf]

You gave almost the right answer yourself:
Fe₂O₃ with dilute sulphuric acid gives a solution that contains Fe³⁺ ions and sulphate ions, no trace of FeSO₄.
I would proceed as follows:
Add a reducing agent. Pure iron powder, in excess, is the most suitable, because no purification afterwards is necessary. You might also pass SO₂ through the solution. But I think the Fe is preferable.
After the reaction has gone to completion, the yellow colour of the solution should have turned pale green. Let the solution evaporate to get the solid FeSO₄.
Avoid the entrance of oxygen during the evaporating process (adding dry ice could be of help because it gives a protective carbon dioxide layer above the solution).
Equation without the sulphate spectator ions:
Fe(s) + 2 Fe³⁺(aq)  3 Fe²⁺(aq)

[BluRay]

If you have Fe₂O₃ in the standard crystalline-red-powder form, you won't be able to dissolve it neither with dilute nor with concentrated H₂SO₄, and the same with HCl or HNO₃ or H3PO₄. If you want to dissolve it at cold, the best way I know is to use HF, otherwise melted K₂S₂O₇.