在线聊天
Specifications
1.Molecular Formula: H2Mg3O12Si42.Size: 325-5000mesh
3.SiO2:35-60%
4.Whiteness:80% to 100%
5.20/25kg packing
Our talc powder is extracted from our mines, wich contains no asbestos or other harmful contaminants.
Raw materials is sorted by hand, cleaned, dried, and sterilized with ultra-violet light.
Finished products are benign, odorless, extremely soft and has excellent dispersibility.
1.Composition cotent:
| Chemical composition | Data |
| Whiteness ≥ | 80-100% |
| 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% |
2.Chemnical properites of all series quality:
Sio2≥ | 61% | 61% | 61% | 61% | 61% |
Mgo≥ | 30% | 30% | 30% | 30% | 30% |
Cao≤ | 0.5% | 0.5% | 0.5% | 0.5% | 0.5% |
Fe2o3≤ | 0.3% | 0.3% | 0.3% | 0.3% | 0.3% |
Al2o3≤ | 0.3% | 0.3% | 0.3% | 0.3% | 0.3% |
Whiteness≥ | 90-98 | 90-98 | 80-98 | 80-98 | 80-98 |
L.O.I≤ | 6.5% | 6.5% | 7.0% | 6.5% | 6.5% |
PH | 7-9 | 7-9 | 7-9 | 7-9 | 7-9 |
Fe2O3 | 0.05-0.1 | 0.05-0.1 | 0.05-0.1 | 0.05-0.1 | 0.05-0.1 |
Asbestos | free | free | free | free | free |
Moisture | 0.3-0.5% | 0.3-0.5% | 0.3-0.5% | 0.3-0.5% | 0.3-0.5% |
3.Physical Properties:
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.
Alibaba Certificate:
Mobile: 86 13722996216
