Why can chromium oxide be used in special steel smelting tap?
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Author : Ada
Update time : 2023-02-13 13:23:12
What is chromium oxide? The scientific name of chromium oxide green is chromium trioxide, also known as "chromium oxide." It is a dark green crystalline powder with a metallic luster belonging to the hexagonal or triangular crystal system, and α- Alumina is the same crystal form, with chemical formula Cr2O3, molecular weight 151.99, and relative density of 5.21. It is harder than quartz and steel, has a melting point of 1990 ℃, a boiling point above 3000 ℃, and its chemical properties are extremely stable. It is magnetic and insoluble in water and alcohol. Chromium oxide green, which has been burned at high temperature, is inert to acid and alkali but can be confused with acid flux and converted into soluble chromium (III) salt. It is soluble in a hot alkali metal bromate solution. Chromium oxide green is a common green pigment; Its color can change from bright green to dark green. It has excellent light resistance, heat resistance, chemical corrosion resistance, and other properties. It has high hiding power, but its color is dark.
Synthesis of chromium oxide Mix 5.68 kg of chromic anhydride and 2.25 L of water for 10 min, and add 11.94 g of antimony trioxide, γ- 23.88g of Fe2O3 and 2.88kg of chromium trioxide; after stirring for 20min, add the above mixture into the autoclave at 270 ℃ and 45 ℃ × React for 15 h under the pressure of 103 kPa to prepare finished chromium dioxide.
Use of chromium oxide Chromium oxide green is mainly used in special steel smelting tapping holes, slide plate openings, and large incinerators. It can be used for coloring ceramics and enamel, rubber coloring, preparation of high-temperature resistant coating, art pigment, and preparation of printing ink for printing paper money and securities. Chromium oxide green is similar to the chlorophyll of plants and can be used for camouflage paint, making it difficult to distinguish in infrared photography. It is also widely used in metallurgy, the production of refractory materials, and grinding powder. It can also be used as a catalyst for organic synthesis; it's a good green pigment.
Price of chromium oxide Chromium oxide particle size and purity will affect the product's price, and the purchase volume can also affect the cost of chromium oxide. A large amount of large amount will be lower. The price of chromium oxide can be found on our company's official website.
Chromium oxide supplier Luoyang Tongrun Nano Technology Co. Ltd. (TRUNNANO) Luoyang City, Henan Province, China, is a reliable and high-quality global chemical material supplier and manufacturer. It has more than 12 years of experience providing ultra-high quality chemicals and nanotechnology materials, including chromium oxide, nitride powder, graphite powder, sulfide powder, and 3D printing powder. If you are looking for high-quality and cost-effective chromium oxide, you are welcome to contact us or inquireat any time.
