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It is a ferroferric compound with the chemical formula Fe3O4. This is also known by the name magnetic because it is a black magnetic crystal. Iron Oxide .

Fe3O4 Properties

It is an iron oxide with mixed valence. It has a melting-point of 1597degC. It is insoluble with water but soluble with acid solutions. Magnetite is the natural form of Fe3O4 at room temperatures. It is submagnetic and has high conductivity.
The combustion of iron wires in oxygen produces ferroferric dioxide. By comparing the Gibbs energy produced by the standard mole (iron oxide) it has been concluded that Fe3O4 produces the highest thermodynamic stability.

Fe3O4 exhibits anti-corrosion properties. In the case of bluing steel parts, also known as baking blue and blue-burning, an alkaline-oxidizing solution is used to produce a blue-black Fe3O4 coating on the steel surface. Used to improve corrosion resistance, aesthetics and gloss.

Application of Fe3O4 Powder

Magnetic iron oxide (MIO) is used widely in various industries.
Ferroferric oxide, a common magnetic material, is ferroferric oxide.
As a raw material, audio tapes and other telecommunications devices are manufactured using a special ferroferric compound.
Magnetite, or Fe3O4, is a naturally occurring mineral that is used to smelt iron.
Primer and topcoat are made from Fe3O4 Powder.
Ferric oxide is a raw material used to produce iron catalysts (a type of catalyst).
Fe3O4 can be used to abrasive. It is used extensively in automobile braking systems, such as brake pads and brake shoes.
Ferroferric Oxide has been recognized as a domestic welding material. Production of welding rods and cables is still very new, but the market prospects are vast.

The high specific gravity of Fe3O4 and its strong magnetism make it a great choice for wastewater treatment.
Ferroferric Oxide can be used both as a sanding and polishing agent.
Certain chemical reactions can be used, like the use of sodium-nitrite etc., to form an oxide layer of ferroferric, which is then applied to the steel surface to either prevent or delay corrosion. “Baked blue” is the term used to describe it after it has been darkened.
Fe3O4 is used in the manufacture of special electrodes.

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