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Manganese dioxide (chemical formula: MnO2) is a black or brown solid, the most stable oxide of manganese, and is often found in pyrolusite and manganese nodules. Pylusite is the main mineral containing manganese; manganese nodules (submarine rock solids) also contain manganese. Manganese dioxide is mainly used to make dry batteries, such as carbon-zinc batteries and alkaline batteries; it is also ...
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1.physical properties Appearance and properties: black or black-brown crystalline or amorphous powder Relative molecular mass: 86.94 Chemical formula: MnO2 Melting point (℃): 535 (decomposition) Relative density (water=1) 5.03 Boiling point (°C): 535°C Solubility: insoluble in water, insoluble in nitric acid Storage: Store in an airtight and cool place 2.chemical properties Manganese dioxide is th...
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Manganese dioxide, also known as "manganese peroxide", "black manganese oxide", is a black orthorhombic crystal or brown-black powder, and there are many variants. Insoluble in water, nitric acid, cold sulfuric acid and acetic acid, soluble in cold and concentrated hydrochloric acid to generate unstable light brown-green MnCl4, which is heated and reacted with concentrated hydrochloric acid to rel...
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Transmission Electron Microscope (TEM) Transmission electron microscopy uses an electron beam that penetrates a sample to image, which requires the sample being observed to be "transparent" to the incident electron beam. Transmission electron microscopy is widely used in materials science and biology. Since electrons are easily scattered or absorbed by objects, the penetration is low, and the dens...
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1 Modified high-strength new material Nano SiC powder particles have good compatibility in polymer composite materials, good dispersion and good basic bonding, the tensile strength of modified high-strength nylon alloy is more than 100% higher than that of ordinary PA6, and the wear resistance is improved by more than 2.5 times. Users have responded well. It is mainly used for polymer parts of arm...
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The application in plastics utilizes the high strength, high fluidity and small size effect of silica, which can improve the compactness, smoothness and wear resistance of plastic products. Through appropriate surface modification, the purpose of strengthening and toughening plastics can be achieved at the same time. By adding fumed silica into polyethylene, through a special method, the silica ca...
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Due to the extremely strong surface activity of nano TiO2, it is easy to form large-sized agglomerates, which affects the practical application. Therefore, it can be modified from the aspects of improving the photocatalytic degradation efficiency of TiO2, changing the dielectric constant and surface activity of TiO2. There are two ways of combining surfactants with TiO2: one is physical adsorption...
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In pigments, nano sized iron oxide is also known as transparent iron oxide (through iron) . The so-called transparency, not specifically refers to the particles themselves macroscopically transparent, but refers to the pigment particles dispersed in the organic phase to make a film (or oil film) , when the light irradiation on the film, if the original direction does not change basically through 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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Silicon nanowires (SiNW), as a novel one-dimensional nanomaterial with high specific surface area and high stability, have received attention and research in the field of sensors. With the optimization of the preparation process and diversification of modification methods of nanosilicon wires, biosensors using nanosilicon wires as carriers have been applied in various fields such as metal ion dete...
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As a typical representative of one-dimensional nanomaterials, silicon nanowires not only possess the special properties of semiconductors, but also exhibit physical properties such as field emission, thermal conductivity, and visible photoluminescence that differ from bulk silicon materials. They have enormous potential application value in nanoelectronic devices, optoelectronic devices, and new e...
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Silicon carbide particle reinforced aluminum matrix composite material, abbreviated as SiCp/Al composite material, refers to the addition of silicon carbide particles (SiCp) to aluminum matrix alloys to form a composite material with high strength, high stiffness, and high heat resistance. This composite material has been widely used in fields such as aerospace, shipbuilding, vehicles, electronic ...
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