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The Fe3O4 black powder is a mixture of valence iron oxide. It has a melting-point of 1597degC. It is soluble only in acidic and insoluble in aqueous solutions. Magnetite is the natural form of Fe3O4 at room temperatures. It is submagnetically strong and has a 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 liquid 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 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 for abrasives because of its hardness. It is used extensively in automobile braking systems, including: brake shoes, brake pads, etc.
The market for ferroferric oxide is wide and growing.
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 pigment or polishing agent.
Certain chemical reactions can be used, like the use of sodium-nitrite etc., to create a dense layer ferroferricoxide on the surface steel. This will prevent or slow the corrosion of the steel. “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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