Black colour talcum powder
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Quality/Safety Certification: 0.00
1.Molecular Formula: H2Mg3O12Si4
2.Size: 200-5000mesh
3.Appearance:black powder
4.Whiteness:78% to 92%
5.25kg packing
Talc powder has properties of lubricity, viscous resistance, flowing boosting, fire resistance, acidoresistance, insulativity, high melting point, inactive der chemismus, good covering power, soft, good shining, good adsorptivity. It can be used in industries of food, rubber, painting, ceramics, cosmetic, pharmaceutical, paper-making, etc.
Composition cotent:
| Chemical composition | Data |
| Whiteness ≥ | 78-92% |
| Dust, mm2/g≤ | 0.4-1 |
| CaCO3 ≤ | 1%-4% |
| Acid-soluble iron | 0.2-0.5 |
| PH | 7-9.5 |
| Moisture ≤ | 0.50% |
| L.O.I. (800oC)≤ | 6%-22% |
| Abrasion Degree | 80-100 |
| SiO2 | 35-62% |
| MgO | 25-32% |
| Fe2O3 | ≤0.1% |
| CaO | ≤0.5% |
| Al2O3 | ≤0.2% |
| Density (g/cm3) | 2.6-2.8 |
| Oil absorption capacity | 20.0-50.0 |
| Pass rate(45μm) ≥ | 98% |
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