chromite powder is a kind of inorganic mineral powder material, the main component is Cr2O3(≥46%）, is made from chromium sand through grinding, the main sizes are 200 mesh 325 mesh, 400 mesh,600mesh 800mesh….2000mesh, mainly used in ceramics, glass, chemical, refractory industry, such as ceramic glaze, glass pigment and so on.
| PHYSICAL PROPERTIES(TYPICAL) | AVERAGE CHEMICAL COMPOSITION(TYPICAL) | ||
| PH | 7-9 | Cr2O3 | ≥46.0% |
| Color | Black | SiO2 | ≤1.0% |
| Acid Amount | ≤2m | Fe2O3 | ≤26.5% |
| Soil% | ≤0.1 | CaO | ≤0.30% |
| Bulk Density | 2.5-3.0g/cm3 | MgO | ≤10.0% |
| Specific Gravity | 4.0-4.8g/cm3 | Al2O3 | ≤15.5% |
| Moisture | ≤0.1% | P | ≤0.003% |
| Sintered temperature | ≥1800℃ | S | ≤0.003% |
| Free Acid | 0 | Cr/Fe | 1.55:1 |
| Filling density | 2.6g/cm3 | ||
| Melting temperature | ≥2180℃ | ||
Chromite powder Applications:
1. Refractory materials: 200 mesh, 320 mesh chromium powder can be used to manufacture refractory materials, such as chrome-magnesium bricks, with good high temperature stability and corrosion resistance.
2. Ceramic industry: chromite powder can be used as an additive to green ceramic glaze for the production of various ceramic products with green color.
3. Glass industry: 200-325 mesh chromite powder as a green colorant for sodium-calcium glass . For example: green or olive beer bottles, red wine bottles, lamp glass color, green glass crafts, decorative coloring dyes, etc.
4. Ink pigment industry: ultra-fine 2000-2500 mesh chromite powder can be used to produce mineral pigments and printing inks.
5. Casting industry: chromite powder can be used for the coating of sand casting to prevent sand, cracks, pores and other defects.