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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 as a polish and pigment, as well to make audiotapes or 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.
Iron reacts with oxygen to form oxides on its 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 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 thick porous layer of hydrated on the air and an amorphous anhydrous on the metal.
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|
|Solubility of H2O||N/A|
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 for 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, 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, medicine, 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 and electronic industries.
It is used as the main raw material for ammonia catalyst
It is used in the production of oil color, ink, and watercolor. 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, plastic and building surfaces.
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