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Introduction toNano Iron Oxide Powder
Iron dioxide Oder ferric oxide This is an organic substance that is also called 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, pigmentation, and the manufacture of audiotapes or telecommunications equipment.
Ferric oxide is magnetic and can be called ferromagnetic particles.
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.

The Physical and Chemical Properties of Nano Iron Oxide powder
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 itself may not be uniformly composed. Three oxide films can cover a piece low carbon steel: the metal contact FeO forms, while the air Fe2O3 contacts, and then 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, hydrated 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. The most common methods of preparing Fe3O4 are the precipitation method and hydrothermal (solvothermal), method. The focus is shifting to new methods of preparation, including the microwave, pyrolytic carbyl pre-body, ultrasonic, pyrolytic decrease method, and polyol reduce 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, medicine, and other purposes. You can use it in the following:
Useful as edible melanin
It is used in analytical reagents, as well as pigment preparation and the electronic industry.
It is used as the primary raw material in 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 of 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, plastic and building surfaces.

Main supplier of Nano Iron Oxide Powder
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