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【 Molecular formula 】 Cr2O3
【 Molecular weight】 151.99
【 CAS NO.】1308-38-9
【 Character 】 Bright green to dark green. Density: 5.21 Melting point: 2266 degrees. Boiling point: 4000 degrees. It has metallic luster, magnetism, strong covering power, high temperature resistance, sunlight resistance, insoluble in water and insoluble in acid. It is relatively stable in the atmosphere, has no effect on the general concentration of acid, alkali and sulfur dioxide gas, and has excellent outstanding pigment quality and fastness.
【 Use 】It is used for smelting metal chromium and chromium carbide, coating, enamel, ceramics, glass, artificial leather, water-resistant materials, coloring of building materials, catalyst for organic synthesis, special ink for manufacturing Sun resistant materials and printing banknotes, metal polishing and grinding materials, metal surface chromizing, magnetic materials, rubber, art pigments, camouflage coatings, etc.
【 Package】25kg plastic inner bag and reinforced woven bag outer package.
【 Notes 】It shall be stored in a dry place to prevent moisture, acid fog and sun exposure. It shall be stored separately from food.
【 Level 】 1 Refractory; 2. Pigment grade; 3. Grinding grade
【 Executive criteria】 GB T20785-2006
Indicator names | Superior quality | First Grade |
% Chromium trioxide (in Cr2O3) | ≥99.0 | 99 |
% Water-soluble chromium Cr6 + | ≤0.005 | 0.03 |
Water content | ≤0.15 | 0.15 |
Hydrotrope | ≤0.1 | 0.3 |
PH | 6-8 | 5-8 |
Oil absorbency (g / 100 g) | 15-25 | 15-25 |
Screening residue (0.045 mm test sieve%) | ≤0.1 | 0.2 |
Relative coloration and chromatic light | User consultation | User consultation |
Manufacturing
