By Lzh | 07 February 2023 | 0 Comments
Why is chromium oxide one of the main products of the chromate industry?
What is chromium oxide?
Chromium oxide green is a hexagonal crystal system or amorphous dark green powder with a metallic luster. It usually has two color phases: light olive green and dark olive green, with metallic color. Relative density is 5.21, melting point: is 2266 ℃, and boiling point is 4000 ℃. It has an excellent heat resistance and can withstand 1000 ℃ without discoloration, acid resistance, and alkali resistance. The product has high purity, small particle size, uniform distribution, and extremely hard crystals. Very stable, There is no change even when hydrogen is introduced under red heat. It is soluble in heated potassium bromate solution, slightly soluble in acids and alkalis, and almost insoluble in water, ethanol, and acetone.
Use of chromium oxide
The pigment is a kind of pigment in the form of particles with a wide range of applications. It is widely used in paint, paint, plastic, rubber, chemical fiber, textile, ceramics, color cement, and other fields. New uses are still increasing, such as cosmetics, tapes, food, adhesives, electrostatic copying, etc. Pigments and coatings are important components of powder coating formulations. The main role of pigments is to color powder and produce decorative effects, while the role of fillers is to improve the coating film's physical properties and mechanical properties and reduce coating costs. The content of pigments and fillers in the powder coating formula has a great impact on the various properties of the coating and coating film. Chromium oxide green (from now on referred to as chrome green) is an inorganic pigment and one of the main products of the chromate industry. It has the advantages of corrosion resistance, light resistance, wear resistance, chemical resistance, etc. It is widely used in metallurgy, ceramics, coatings, rubber, abrasive, catalysis, building materials, and other fields, and it is an indispensable industrial raw material.
Preparation of chromium oxide
The thermal decomposition of chromic anhydride to produce chromium oxide is a simple process with less equipment and investment. It is an important method for China, Russia, Kazakhstan, Poland, and other countries to produce commercial chromic oxide green. This method has unique advantages: Chromic anhydride melts at about 200C and begins to decompose, and oxygen and chromic oxide are precipitated. As the temperature rises, chromic oxide crystals can gradually form and grow in the chromic anhydride molten solution, with few crystal defects; it enables the finished product to maintain many excellent properties of chromium oxide single crystal, such as high hardness (Mohs hardness is about 8.59, close to silicon carbide), deep color (strong coloring power), and high refractive index (good covering power). China's chromium oxide produced by this method has developed very fast in recent years. In 1999, the output of chromium oxide made from chromic anhydride was about 13000 tons, twice the metallurgical grade chromium oxide produced by the ferroalloy plant from sodium chromate reduction.
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 inquire at any time.
Chromium oxide green is a hexagonal crystal system or amorphous dark green powder with a metallic luster. It usually has two color phases: light olive green and dark olive green, with metallic color. Relative density is 5.21, melting point: is 2266 ℃, and boiling point is 4000 ℃. It has an excellent heat resistance and can withstand 1000 ℃ without discoloration, acid resistance, and alkali resistance. The product has high purity, small particle size, uniform distribution, and extremely hard crystals. Very stable, There is no change even when hydrogen is introduced under red heat. It is soluble in heated potassium bromate solution, slightly soluble in acids and alkalis, and almost insoluble in water, ethanol, and acetone.
The pigment is a kind of pigment in the form of particles with a wide range of applications. It is widely used in paint, paint, plastic, rubber, chemical fiber, textile, ceramics, color cement, and other fields. New uses are still increasing, such as cosmetics, tapes, food, adhesives, electrostatic copying, etc. Pigments and coatings are important components of powder coating formulations. The main role of pigments is to color powder and produce decorative effects, while the role of fillers is to improve the coating film's physical properties and mechanical properties and reduce coating costs. The content of pigments and fillers in the powder coating formula has a great impact on the various properties of the coating and coating film. Chromium oxide green (from now on referred to as chrome green) is an inorganic pigment and one of the main products of the chromate industry. It has the advantages of corrosion resistance, light resistance, wear resistance, chemical resistance, etc. It is widely used in metallurgy, ceramics, coatings, rubber, abrasive, catalysis, building materials, and other fields, and it is an indispensable industrial raw material.
Preparation of chromium oxide
The thermal decomposition of chromic anhydride to produce chromium oxide is a simple process with less equipment and investment. It is an important method for China, Russia, Kazakhstan, Poland, and other countries to produce commercial chromic oxide green. This method has unique advantages: Chromic anhydride melts at about 200C and begins to decompose, and oxygen and chromic oxide are precipitated. As the temperature rises, chromic oxide crystals can gradually form and grow in the chromic anhydride molten solution, with few crystal defects; it enables the finished product to maintain many excellent properties of chromium oxide single crystal, such as high hardness (Mohs hardness is about 8.59, close to silicon carbide), deep color (strong coloring power), and high refractive index (good covering power). China's chromium oxide produced by this method has developed very fast in recent years. In 1999, the output of chromium oxide made from chromic anhydride was about 13000 tons, twice the metallurgical grade chromium oxide produced by the ferroalloy plant from sodium chromate reduction.
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 inquire at any time.
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