What is Fe2O3 and Fe3O4?

They are ferrous oxides. Thus, Fe2O3 is a simple oxide where Fe is only + 3 in the oxidation state thus Fe3O4 is a mixed oxide where Fe is present in both + 2 and + 3 oxidation states. However, we compose Fe3O4 as FeO. Fe2O3 is written as iron oxide (III) while Fe3O4 is written as iron oxide (II, III).

What are the two types of iron oxides?

The difference in the type of iron oxide is mostly dependent on the concentration of iron and oxygen in the given compound.

• Iron II oxide: Also known as ferrous oxide, this compound forms nearly 9% of the earth’s mantle.
• Iron III oxide: This oxide occurs naturally as the mineral hematite and has uses in several sectors.

How do you distinguish Fe2O3 and Fe3O4?

You should be able to easily differentiate between the two using XRD. Color can also be useful in identifying iron oxides. Fe3O4 nanoparticles are black (or a brownish black), while Fe2O3 nanoparticles are typically red to reddish-brown.

How do Fe2O3 and FeO differ?

FeO and Fe2O3 are oxides of iron having different oxidation states of iron atoms. The key difference between FeO and Fe2O3 is that FeO has iron in +2 oxidations state, whereas Fe2O3 has iron in +3 oxidation state. Moreover, FeO is a black powder while Fe2O3 is a red powder.

Why is it called Fe3O4?

What is Iron (II, III) oxide? Fe3O4 occurs as a mineral with a chemical name Iron (II, III) oxide.

Is Fe3O4 ferromagnetic or ferrimagnetic?

ferrimagnetic
The magnetic interaction among iron ions at octahedral and tetrahedral sites is antiferromagnetic and that among octahedral ions is ferromagnetic; overall a ferrimagnetic arrangement of Fe3O4. Therefore, the net magnetic moment in Fe3O4 is due to Fe2+ ions (4 μB).

What is FeO used for?

Uses. Iron(II) oxide is used as a pigment. It is FDA-approved for use in cosmetics and it is used in some tattoo inks. It can also be used as a phosphate remover from home aquaria.

Why is Fe3O4 paramagnetic?

The magnetic interaction among iron ions at octahedral and tetrahedral sites is antiferromagnetic and that among octahedral ions is ferromagnetic; overall a ferrimagnetic arrangement of Fe3O4. Therefore, the net magnetic moment in Fe3O4 is due to Fe2+ ions (4 μB).

Is Fe3O4 paramagnetic or diamagnetic?

So, the correct answer is option C) paramagnetic.