Chromite flour has the following properties in terms of performance:
》》The color of chromite flour 325 mesh. Chromium element is a good material as raw material for green pigments and colorants in industry.
Chromite flour contains 46% chromium oxide. it can produce an Emerald Green or Georgia Green when added to soda-lime glass and fired in a kiln. Therefore, chromite flour can be used as a pigment for dark brown or green glass containers.
》》The pH value is neutral and will not affect the acidity or alkalinity of coatings or other products.
》》The thermal expansion coefficient is low, and the thermal expansion coefficient of chromite flour at high temperatures is 0.6×10–6/℃. As an addition to casting coatings, it is beneficial for casting precision.
》》The particle size of chromite flour is smaller than 325 mesh(45 microns). And the screening of chromite flour is carried out using a 325-mesh sieve. The residue rate below 45 microns is over 95%, with high particle size uniformity.
| 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℃ | ||
325 mesh Chromite flour is a material with high-temperature resistance, low expansion, and high thermal conductivity. The main applications include:
》》Tea/green soda-lime glass container colorant.
》》Ceramic glaze.
》》Refractory castable.
》》Wear resistant filler for brake pads.
