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What is chromium oxide?
Chromium oxide chemical formula Cr203... Also known as chromium trioxide, it is an inorganic compound with a melting point of 2435°C, a boiling point of 4000°C, a density of 5.21 g/cm3 and a green crystalline powder.
Chromium oxide is extremely stable chemically. It is magnetic. Insoluble in water and alcohol. High-temperature burned chromium oxide green are inert to acids and bases, but can be co-melted with acidic melts, turning into soluble chromium (Ⅲ) salt. It is soluble in hot alkali metal bromate solution. Chromium Oxide Green is a common green pigment, its colour can be from bright green to dark green, with excellent resistance to light, heat and chemical corrosion, high hiding power, but darker.
Chromium oxide is an important inorganic compound with a wide range of applications... The following are some of the main application areas of chromium oxide:
1. Metallurgical industry: Chromium oxide is used as an additive for high temperature alloys in the metallurgical industry. It can improve the oxidation resistance, corrosion resistance and high-temperature strength of alloys, and is commonly used in the manufacture of high-performance parts such as aviation engines and gas turbines.
2. Pigments and paints: chromium oxide is an important inorganic pigment with good covering power and durability. It is widely used in the manufacture of paints, coatings, plastics and rubber to provide colour and protective properties.
3. Catalyst: Chromium oxide is used as a catalyst in the chemical industry. It facilitates many chemical reactions such as oxidation, hydrogenation and esterification. Chromium oxide catalysts have a wide range of applications in organic synthesis, petrochemical and environmental protection.
4. Abrasive material: chromium oxide has high hardness and wear resistance, so it is used as abrasive material. It is commonly used in the manufacture of grinding wheels, sandpaper, abrasives and polishing agents, etc. It is used in the fields of metal processing, stone processing and glass processing.
5. Battery materials: Chromium oxide can be used to make the anode material of lithium battery. It has higher energy density and better cycling performance, which can improve the performance and life of lithium batteries.
6. Ceramic materials: chromium oxide is used as an additive in the ceramic industry. It can improve the mechanical properties, heat resistance and corrosion resistance of ceramics, and is commonly used in the manufacture of high-temperature structural ceramics, electronic ceramics and functional ceramics.
Properties and uses of nickel sulphateNickel sulphate is an inorganic compound with the chemical formula NiSO4, usually found in the form of a hexahydrate, NiSO4-6H2O.- What is activated white clay?Activated white clay, also known as decolorised clay, is a white powder with very fine pores, a natural silicate mineral, the main components are silicate minerals, alumina and calcium oxide, etc. It has the properties of adsorption, ion exchange and catalysis. It is an important inorganic adsorbent, which can adsorb and separate macromolecular compounds, organic molecules and inorganic substances, and is widely used in various fields such as chemical industry, pharmaceuticals, food, oil and grease, cosmetics, water treatment and so on.
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- What is the use of powdered sodium silicate?Sodium silicate, commonly known as effervescent soda ash, is an inorganic substance with the chemical formula Na2O-nSiO2, and its aqueous solution is commonly known as water glass, a mineral binder. Its chemical formula is Na2O-nSiO2, and it is a soluble inorganic silicate with a wide range of uses.
- Industrial use of sodium gluconateSodium gluconate is an organic material, chemical formula for C6H11NaO7, in the industry is very wide range of uses, sodium gluconate can be used in construction, textile printing and dyeing and metal surface treatment and water treatment industries as a high-efficiency chelating agent, iron and steel surface cleaning agent, glass bottle cleaning agent, plating industry, aluminium oxygen colouring, used as a high-efficiency retarding agent, high-efficiency water reducer and so on in the concrete industry.
- What is the difference between semi-refined paraffin wax and fully refined paraffin wax?Paraffin wax, also known as crystalline wax, is usually a white, odorless, waxy solid, a kind of petroleum processed product, a kind of mineral wax, and a kind of petroleum wax. It is a flaky or needle-like crystal obtained from the lubricating oil fraction obtained from the distillation of crude oil by solvent refining, solvent dewaxing or wax paste made by wax freeze crystallization and press dewaxing, and then by sweating or solvent degreasing, white clay refining or hydrogenation refinement.
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