Magnetic Material Fe3O4 Powder Introduction

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It is an inorganic compound with the chemical formula Fe3O4. This 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 a standard mole of ferroferric oxide, we can conclude that Fe3O4 exhibits 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 dark-blue or 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 several industries.
Ferroferric oxide, a common magnetic material, is ferroferric oxyd.
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 brakes such as brake pads, brake shoe, etc.
The market for ferroferric oxide is currently very large.


The high specific gravity of Fe3O4 and its strong magnetism make it a great choice for wastewater treatment.
The oxide ferroferric can be used both as a pigment or 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. It is known as “baked-blue” when blackened.
Special electrodes can be made using Fe3O4 Powder.

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