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Views: 7 Author: Site Editor Publish Time: 2022-03-02 Origin: Site
Chemical formula: Cr2O3
Crystal: hexagonal
Particle size: nanometer micron
Purity: ≥ 99.99%
Color: green
Chromic oxide green, hexagonal or amorphous dark green powder with metallic luster. It usually comes in two shades: light olive green and dark olive green, with metallic tints. Relative density 5.21, melting point: 2266℃, boiling point 4000℃. Excellent heat resistance, can withstand temperature 1000℃ without discoloration, acid resistance, alkali resistance is also quite good. High purity, small particle size, uniform distribution, crystal very hard. Extremely stable, even in red heat through the hydrogen does not change. Soluble in heated potassium bromate solution, slightly soluble in acids and bases, almost insoluble in water, ethanol and acetone.
Chrome oxide green is mainly used in special steel smelting steel mouth, slide plate mouth and large incinerator can be used for ceramic and enamel coloring, rubber coloring, preparation of high temperature resistant coating, art pigment, for preparation of printing paper money and securities ink. Chrome-oxide green has a color similar to chlorophyll in plants and is used as a camouflage paint, making it difficult to distinguish in infrared photography. Also widely used in metallurgy, making refractory materials, grinding powder. Can also be used as a catalyst for organic synthesis, is a good green pigment.
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