23 октября, 2015 
Pokraskin Chromium oxide pigments, also called chromium oxide green pigments, consist of chromium(III) oxide [1308-38-9], Cr2O3, Mr 151.99. Chromium oxide green is one of the few single-component pigments with green coloration. Chrome green is a blend ofchrome yellow and iron blue pigments; phthalochrome green is a blend ofchrome yellow and blue phthalocyanine pigments.
Natural, profitable deposits of chromium oxide are not known. In addition to pigment grade, chromium oxide producers usually also offer a technical grade for applications based on properties other than coloration. These include:
1. Metallurgy: aluminothermic production of chromium metal by reaction of aluminum powder and Cr2O3
2. Refractory industry: production of thermally and chemically resistant bricks and lining materials
3. Ceramic industry: coloring of porcelain enamels, ceramic frits, and glazes
4. Pigment industry: raw material for the production of chromium-containing stains and pigments based on mixed metal oxide phases
5. Grinding and polishing agent: chromium(III) oxide is used in brake linings and polishing agents due to its high hardness
Chromium oxide hydroxide and hydrated chromium oxide pigments (Grignets Green) have a very attractive blue-green color. They are of low opacity, but provide excellent lightfastness and good chemical resistance. Loss of water on heating limits the application temperature. These pigments are no longer of industrial importance [3.53].
3.1.2.1
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