Chromite flour 38um fine powder
Chromite flour 38um fine powder is a typical inorganic mineral pigment for green glass bottle, glass container and ceramic glaze. It can resist high temperature of glass & ceramic sintering. Chromate flour 325mesh is a fine-grained black particle. The approximate chemical composition is described by the chemical formula FeCr2O4. In industrial production, it is obtained by grinding and further dispersing the fine particles of chromite ore.
Features of Chromite flour:
- High refractory temperature, good high-temperature stability, good performance at 1800 ℃, and does not affect the firing of glass products.
- Good heat shock resistance, corrosion-resistant glass and slag.
- The content of Cr2O3 is higher than 46%.
- The particle size is uniform and delicate, with strict control over particle size.
Physical data:
| Main Chemical | Cr2O3·FeO |
| Hardness: | Mohs:5.5-6 |
| Melting Point: | Sublimes at 2180 ℃ |
| Sintering point: | ＞1800℃ |
| Color: | Dark brown/ Dark red black |
| PH | 7-9 |
| Percentage of Moisture | ≤0.1 |
| CAS No.: | 1308-31-2 |
Chemical Composition:
| Item | Guarantee Value | Typical Value |
| Cr2O3 | ≥46.0% | 46.36% |
| SiO2 | ≤1.0% | 0.94% |
| FeO+Fe2O3 | 26-28% | 27.01% |
| AL2O3 | ≤15.5% | 13.62% |
| TiO2 | ≤1.0% | 0.63% |
| CaO | ≤0.3% | 0.12% |
| MgO | ≤10% | 9.35% |
| Na2O | ≤0.5% | 0.12% |
| MnO | ≤0.5% | 0.32% |
| ZnO | ≤0.2% | 0.088% |
| NiO | ≤0.2% | 0.107% |
| P | ≤0.003% | / |
| S | ≤0.003% | / |
Applications of Chromite flour:
- Coloring pigments for green flat glass.
- Ceramic glaze pigments.
- Green dye for glass containers of alcoholic beverages such as beer bottles, red wine bottles, and champagne bottles.
- Green coloring agent for decorative glass and video glass.
- Refractory castables, etc.
- Casting coatings and fire-resistant coatings.
- Wear resistant coating and wear-resistant filler.
Other available specifications:
| Grit size | Passing rate |
| Chromite flour 200 mesh | 95%,97%,100% |
| Chromite flour 270 mesh | 95%,97%,100% |
| Iron Chromate flour 325mesh | 95%,97%,100% |
| Chromite flour 400 mesh | 100% |
| Chromite flour 600 mesh | 100% |
| Chromite flour 800 mesh | 100% |
| Chromite flour 1000 mesh | 95% |
| Chromite flour 1200 mesh | 95% |
| Chromite flour 1500 mesh | 95% |
| Chromite flour 2000 mesh | 95% |
*Other particle size are available upon request.
Production details:
Package of Chromite flour:
FAC:
Q: What is the origin of your chromite flour:
A: Our raw material is 46% chromite ore from South Africa and 48-50% chromite ore from Zimbabwe.
Q: Can you make customized production? Is there MOQ?
A: Yes, we can make customized production such as chromite flour 600mesh, 800mesh, 1000mesh, 1200mesh,1500mesh,2000mesh even 2500mesh fine chrome flour.
The MOQ is 1000 kgs.
Q: What is your capacity of chromite flour 325F?
A: Our capcaity of chromite flour 325F is 30 tons per day.
Q: What is the HS code of chromite flour?
A: The HS code is 26100000.
Q: Is free sample available?
A: Yes, free sample of 1 kgs is available.
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