Iron oxide red is an inorganic substance with small and soft particles that can absorb ultraviolet radiation. Iron oxide red is composed of micro iron particles with certain magnetic properties. The following is a specific analysis compiled by the editor:
Most iron oxide red magnetic materials are compounds containing iron, which is correct because magnets are mostly mixtures. Cobalt, nickel and other atoms have special structures, and the atoms themselves have magnetic moments. Generally speaking, these mineral molecules are disordered. Magnetic regions do not exhibit magnetism when interacting, but under the guidance of external forces, the direction of molecular arrangement tends to be consistent, exhibiting magnetism, commonly known as magnets.
Iron oxide red is a magnetic black crystal, commonly known as magnetic iron oxide, which is a composite oxide composed of 1/3 Fe2 and 2/3 Fe3. Fe3 and Fe3O4 can be regarded as compounds formed by FeO and Fe2O3.
Heat the product to its melting point while dispersing it, with a relative density of 5.18. It has good magnetism, so it is also known as "magnetic iron oxide". It is the main component in the preparation of magnetite, and under humid conditions, it is easily oxidized to iron oxide in the air. Insoluble in water, soluble in acid. Modern testing has shown that it is actually a mixed valence compound of iron.