Chrome oxide green, with the chemical formula Cr₂O₃, is an inorganic compound that combines stability, functionality, and cost-effectiveness. It exhibits a bright and long-lasting emerald green hue, along with excellent properties such as high temperature resistance and chemical corrosion resistance. Owing to these characteristics, it is widely used in various industrial fields including pigments, metallurgy, ceramics, and abrasives, and is one of the indispensable key materials in industrial production.
Chrome oxide green has an extremely high melting point of 2435°C and a boiling point of approximately 4000°C. It does not decompose or change color when used for a long time below 1000°C, and can even maintain structural stability when exposed to a high-temperature environment of 1800°C for a short period. Therefore, it is suitable for high-temperature sintering scenarios (such as ceramic glazes and refractory materials).
With a Mohs hardness of 8.5, chrome oxide green is second only to diamond (hardness 10) and corundum (hardness 9), and its hardness is much higher than that of ordinary metals and ceramics. Due to its hard texture and wear resistance, it serves as a high-quality polishing and grinding material.