Tag: Fe3O4 Powder

Magnetic Material Fe3O4 Powder Introduction

It is an inorganic compound with the chemical formula Fe3O4. This is a black magnetic crystal. Iron Oxide .

Fe3O4 Properties

The Fe3O4 black powder is a mixture of valence iron oxide. It has a melting-point of 1597degC. It is insoluble with water but soluble with acidic solutions. Magnetite is the natural form of Fe3O4 at room temperatures. It has a high conductivity and strong submagnetism.
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 dark-blue or blue-black Fe3O4 coating on the steel surface. It is used to improve corrosion resistance, aesthetics and gloss.

Application of Fe3O4 Powder

Magnetic iron oxide (MIO) is used widely in many 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 shoes, brake pads, etc.
Ferroferric Oxide has been recognized as a domestic welding material. Production of welding rods and cables is still in its early stages, but the market prospects are very large.


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 polishing and pigment 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.
Fe3O4 is used in the manufacture of special electrodes.

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It is an inorganic compound with the chemical formula Fe3O4. This is a black magnetic crystal. Iron Oxide . Fe3O4 Properties The Fe3O4 black powder […]

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Iron Oxide Fe3O4 Powder Properties And Preparation

Iron Oxide Fe3O4 is an inorganic material with a chemical composition of Fe3O4. The magnetic black crystal is called magnetic iron dioxide.

Iron Oxide Fe3O4 Powder Properties

Ferric oxide cannot be dissolved in organic solvents, such as water or alkali solutions. Natural ferroferric dioxide is not soluble when mixed with acid and can easily be oxidized into iron oxide (Fe2O3) if the air is humid.
The black Fe3O4 is an iron oxide with mixed valence, melting at 1597degC. It has a density of 5,18g/cm3 and a melting temp of 1597degC. Fe3O4 Powder is not soluble with water but is soluble with acid solutions. At room temperature, it appears as magnetite. It has a high conductivity and strong submagnetism.

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

Iron Oxide Fe3O4 Powder Preparation

The main methods used to prepare nano-Fe3O4 are the hydrothermal method (solvothermal), the microemulsification technique, and the sol-gel technique.

1. Precipitation methods
The precipitation process is widely used to prepare nanoparticles because it is easy, inexpensive, yields a high purity product, has a uniform composition, is scalable, and can be done at large scales. The most common precipitation methods are co-precipitation and hydrolytic precipitation. Ultrasonic precipitation is also used, as well as alkoxide hydrogenation and chelate breakdown.

2. Hydrothermal (solvothermal method)
Hydrothermal reaction (solvothermal) is the general term used for chemical reactions which are carried out under high pressure and temperature in fluids, such as aqueous (organic) solvents or steam. The Fe3O4 obtained by the hydrothermal process has a particle size that is small and uniform, it does not need high-temperature pretreatment to calcinate, and it can be doped with multivalent ions.

3. Microemulsification method
The microemulsification technique is the process of creating an emulsion using two immiscible solutions under the influence of surfactants. In this method, amphiphilic molecule divides the continuous medium in tiny spaces that form a small reactor, where the reactants are able to react and form a solid. The microreactor limits the nucleation, growth of crystals, coalescence, agglomeration processes, so that nanoparticles are formed with a surfactant layer and a condensed structure.

4. Sol-gel method
The method is based on the hydrolysis of metal alkoxides and the polymerization to produce a uniform solution of metal oxides and metal hydroxides. They are then concentrated into a clear gel. The gel is dried, and then heat-treated in order to obtain a superfine powder of oxide.

Tech Co., Ltd. is a professional oxide powder We are a chemical product supplier with 12 years of experience. We accept payment by Credit Card, T/T (West Union), Paypal and T/T. The goods will be shipped to overseas customers via FedEx or DHL.

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Iron Oxide Fe3O4 is an inorganic material with a chemical composition of Fe3O4. The magnetic black crystal is called magnetic iron dioxide. Iron Oxide Fe3O4 […]

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What is Nano Iron Oxide Fe3O4 Powder?

Introduction toNano Iron Oxide Powder
Iron dioxide Oder ferric oxide This is a type of inorganic material, and its chemical composition is Fe3O4. It is a black crystal that has magnetic properties. This makes it also known as magnetic iron dioxide. Iron oxide is insoluble when mixed with water, alkali solution or ethanol. The natural ferricoxide is insoluble in acid solutions. It can also be oxidized to ferricoxide (Fe2O3) under humid conditions. It is often used in polishing, pigment, and manufacturing audiotapes and other telecommunications equipment.
Ferric oxide has ferromagnetic property and is called “ferromagnetic particles” if the radius of the particle is smaller than 1 nanometer.
Powder of nano ferricoxide (Fe3O4) Magnetic and capable of generating directional movement in the external magnet field. It exhibits superparamagnetism if its particle size falls within a specified range. In the external alternating electromagnetic fields, it can produce heat. It exhibits stable chemical performance.

Nano Iron Oxide Powder’s Physicochemical Property
Black Fe3O4 is an iron mixed-valence oxide with a melting temperature of 1597, and a density 5.18g/cm3. It is insoluble with water but easily soluble in acid. It can be found as magnetite in nature.
Fe3O4 can be produced when an iron wire is heated in oxygen.
When iron comes in contact to air, it forms oxides on the surface. However, the oxide film is not uniformly made. Three oxide films can cover a piece low-carbon steel: the metal contact FeO forms, while the air Fe2O3 forms. The middle is Fe3O4. Instead, it could be a mixture or saturated solid solutions of three different oxides that forms the oxide film.
However, oxide film thickness can vary according to environmental conditions. At room temperature the oxide thickness of relatively pure Iron in dry air is less than 20 angstroms. The oxide film thickness in humid air increases and can be observed as rust spots. The oxide layer stratifies at this point, with a dense, anhydrous, porous layer on one side and a thin, porous layer on another.
Iron reacts to water vapor to make Fe3O4 (and hydrogen).
Fe3O4 has anti-corrosion properties. To increase corrosion resistance and beauty, you can use the oxidation solution for alkaline oxidizing solutions to form a layer blue-black or dark-blue Fe3O4 film.
Nano Iron Oxide Powder Properties
Other Names magnetic black, fenosoferric oxide, ferro ferric oxide, ferrosoferric oxide, Fe3O4
No. 1317-61-9
Formula compound Fe3O4
Molecular Weight 233.53
Appearance black powder
Melting Point 1597degC
Boiling Point N/A
Density 4.8-5.1g/cm3
Solubility of H2O N/A
Exact Mass 231.784471

Iron Oxide Fe3O4 Powder CAS 1317-61-9

Nano Iron Oxide powder preparation
A large amount of literature has been published on nano-Fe3O4 preparation since 2013. However, some new methods have also been developed. There are several traditional methods to prepare Fe3O4: the precipitation method (solvothermal), micro emulsification and sol-gel methods. The focus is shifting to new methods of preparation, including the microwave, pyrolytic carbyl pre-body, ultrasonic, air oxidation, pyrolytic decrease method, and polyol removal method. There have been many breakthroughs in the production of Fe3O4. SDS, PEG CTAB and CTAB are not the only surfactants that have been developed. NSOCMCS has also reported polyacrylamide as a modifier. Ethanol and water system; n – propanol and water system; propylene glycol and water system.

Nano Iron Oxide powder has many applications
It is a multifunctional magnet material. nano ferric oxide This has been widely used for tumor treatment, medical, and other purposes. You can use it in the following:
Useful as edible melanin
It is used as an analysis reagent in the pharmaceutical, pigment preparation, electronic, and other industries.
It is used as the main raw material for ammonia catalyst
It is used in the production of oil color, watercolor, and ink. The coating industry is responsible for the production of primers and anti-rust paint. Construction for cement floor coloring and artificial marble. The electronics and telecommunications industries use magnetic steel as a cathodeplate for alkaline dry cell. It is used to detect flaws in steel during machine building.
It can be used to color capsule icing or tablet coloring.
Useful for coloring coatings, plastics and building surfaces.

Main supplier of Nano Iron Oxide Powder
Technology Co. Ltd. is a trusted global supplier and manufacturer of chemical materials. We have more than 12 years experience in providing high-quality chemicals, nanomaterials, and graphite powder.
High-quality products are what you want nano iron oxide powder Please feel free and contact us to send us an inquiry. (brad@ihpa.net)

Introduction toNano Iron Oxide Powder Iron dioxide Oder ferric oxide This is a type of inorganic material, and its chemical composition is Fe3O4. It is […]

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What is Fe3O4 Powder?

What is it? Fe3O4 Pulp ? Fe3O4 (inorganic substance) has the chemical formula Fe3O4. It is a black magnetic crystal so it is sometimes called magnetic iron dioxide. It is not considered ferrous metaferrite [Fe(FeO2)2], and it cannot be regarded a mixture (FeO2O3) of iron oxide (Fe2O3). However it can be approximately regarded a ferrous ore. A compound consisting of iron oxide and iron (FeO*Fe2O3). This substance is insoluble when it comes into contact with water, alkaline solution, and organic solvents such ether and ethanol. Insoluble in acid solution, natural ferricoxide is easily oxidized into iron oxide (Fe2O3) when the environment is humid. It is commonly used as a pigment or polishing agent. However, it can also serve to manufacture audio tapes and telecommunications equipment.
Fe3O4 powder’s key features
Black Fe3O4 is an iron valence oxalate with a melting temperature of 1597degC. It has a density of 5.18g/cm3. It is insoluble and soluble both in water as well as in acid solution. It can be found as magnetite in nature.
Ferromagnetic or ferrimagnetic materials undergo a second order phase transition above Curie temperature, which transforms into paramagnetic compounds. The Curie temperature is 585 for Fe3O4. Ferric oxide is formed when iron wire is heated in oxygen. Comparing the standard mole iron oxide to produce Gibbs free energy, it was found that Fe3O4 has a greater thermodynamic stability. The product is Fe3O4. Iron oxides form when iron comes in contact to air. This is because the chemical compositions of the oxide films are not uniform. Three oxide films can be applied to a piece low carbon steel: FeO covers the metal, Fe2O3 covers the air and Fe3O4 covers the metal. The oxide film may consist of a mixture of solid saturated solutions of the three different oxides. The oxide film’s thickness can vary depending on how it is oxidized in different environments. At room temperature, the oxide film thickness on relatively pure iron is not more than 20 angstroms (1.angstrom = 0.1nm). But, it can be seen that the oxide film thickness increases in humid air. Rust spots can also be visible. This is when the oxides are deposited in layers. The layer closest to the metal is an dense amorphous-hydrous layer and the layer close to air is thick porous hydration. Fe3O4 and Hydrogen are formed when iron reacts to water vapor. Fe3O4 has an anti-corrosion property. To bluing (also known by bluing or baking blue) steel parts, you use an alkaline oxidizing solution. The result is a Fe3O4 coating on the steel parts’ surface. It is used to increase gloss, corrosion resistance, and aesthetics.
Iron Oxide Properties
Other Titles Magnet black, fenosoferric dioxide, ferro ferricoxid
Ferroferric Oxide, Fe3O4
No. 1317-61-9
Combination Formula Fe3O4
Molecular Weight 233.53
Appearance Black Powder
Melting Point 1597 degC
Boiling Point N/A
Density 4.8-5.1 g/cm3
Solubility of H2O N/A
Exact Mass 231.784471
Iron Oxide Fe3O4 Powder CAS 1317-61-9
Fe3O4’s applications
1. Ferric oxide can be used as a magnetic material.
2. As a raw material for recording tapes or telecommunication equipment, a special made pure ferric dioxide is used.
3. This is used for primers or topcoats.
4. Iron catalyst (a catalyst) production is mainly done from ferric oxide.
5. In the field of domestic welding materials ferric oxide has been recognised. The production of welding wires and electrodes is still in its infancy and there is a lot of potential.
6. Ferric oxide is a strong magnet and has a high specific gravity, which makes it an excellent choice for wastewater treatment.
7. Also, ferric oxide can be used as a polishing and pigment agent.
High-quality supplier of Fe3O4 Powder
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What is it? Fe3O4 Pulp ? Fe3O4 (inorganic substance) has the chemical formula Fe3O4. It is a black magnetic crystal so it is sometimes called […]

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