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When the size of the nano-ferric oxide particles is reduced to the nanometer order, due to the small size effect, surface effect, quantum size effect and macroscopic quantum tunneling effect of the nanoparticles, it has a special difference from the conventional bulk materials. Magnetic properties. This also makes it have special applications in the fields of industry, biomedicine and so on. 1.Mag...
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Preparation of kerosene-based magnetic fluid of Fe3O4 In this experiment, analytically pure ferric chloride, ferric chloride and ammonia (NH3 content 25%) were used to prepare magnetic particles of Fe3O4 according to chemical coprecipitation method. The chemical reaction equation is 2FeCl3·6H2O+FeCl2·4H2O+8NH3·H2O= Fe3O4+8NH4Cl+24H2O (1) In the dissolution process, FeCl2·4H2O blue-green crystals a...
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Ferric oxide Nanopowder is a crystal, and its internal molecules are arranged in a regular manner, and the molecular current orientation is uniform, resulting in magnetic properties. When the magnet is brought close to the ferromagnetic substance, it is magnetically affected by the magnet, and the internal molecular current of the ferromagnetic substance tends to be regularly oriented and mag...
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In our daily life, we often use various forms of magnets, and many people with magnetic liquids have definitely not seen them. Magnetic fluid is a kind of magical liquid. In short, it is a fluid-like substance with magnetism. It is covered with spikes and can change shape with magnetism at will, just like magic. Magnetic fluid is a colloidal liquid composed of magnetic solid particles, carrier liq...
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First. Principle of magnetic fluid sealing Magnetic fluid has both liquid fluidity and solid magnetic properties. The magnetic fluid sealing technology is realized by utilizing the responsiveness of the magnetic liquid to the magnetic field. When the magnetic fluid is injected into the gap of the magnetic circuit composed of high-performance permanent magnets, pole shoes with good permeability, an...
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Copper oxide and cuprous oxide belong to traditional mineral-derived pesticides, which have the functions of killing insects, sterilizing, fertilizer, wood preserving, and regulating plant growth in the field of pesticides. Although copper has a long history as a fungicide and insecticide in the field of pesticides, traditional inorganic copper oxide has a series of problems such as slow absorptio...
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Advantages of nano ferroferric oxide black magnetic powder: 1. Nano Iron oxide black magnetic powder has the characteristics of high permeability, low coercivity and low remanence; 2. Nano Fe3O4 black magnetic powder has good dispersibility, is not easy to agglomerate, and has strong magnetism; 3. One-dimensional nano ferroferric oxide black magnetic powder has good magnetic permeability and good ...
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(1) Black nano Fe3O4 iron oxide: Size: 30nm, PH: 8-10, SSA:4-5g/cm3 Black nano ferroferric oxide is a mixed valence oxide of iron with a melting point of 1597°C. It is insoluble in water but soluble in acid solutions. Vk-EF01 has anti-corrosion effect. For example, the bluing of steel parts (also known as blue-burning and baking blue) is to use the oxidation effect of alkaline oxidizing solution t...
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1.The application of nanometer iron oxide in ink material, The transparent iron yellow can be used for the coating of the outside of the can, the nanometer iron oxide red ink is red-gold color, it is especially suitable for the inside of the can, and the transparent iron red can resist the high temperature of 300 ° C, is a rare pigment in ink treasures. In order to improve the printing quality of ...
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1. In the application of nano ferric oxide in magnetic materials and magnetic recording materials The size of magnetic particles as a magnetic recording unit must meet the following requirements: the length of particles should be smaller than the recording wavelength; The width of the particles (including possible lengths) should be much smaller than the recording depth; there should be as many ma...
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1、 Safety and Environmental Protection Nano magnesium oxide has very high safety and environmental friendliness. As a non-toxic and harmless material, compared to traditional magnesium oxide materials, nano magnesium oxide has higher strength and durability, as well as better corrosion and wear resistance, which can be used for a long time in various harsh environments. 2、 Strong adsorption capaci...
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The nano-chromium-nickel-iron alloy has several unique characteristics. Firstly, it has excellent magnetic properties that make it useful in applications where magnetism is necessary, such as electronic devices and MRI machines. Secondly, it has a high resistance to corrosion, making it ideal for use in various environments, including marine environments. Thirdly, it exhibits high strength and dur...
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