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Specifications
1.SiO2 Content:61%2.Size: 325mesh
3.Food and medical grade
4.Whiteness:90%
5.25kg kraft packing
Pharmaceutical grade talc powder:
SIO2: 61%
Whiteness:90%
Fineness:325mesh
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1.Composition cotent:
| Chemical composition | Data |
| Whiteness?≥ | 90% |
| Dust,?mm2/g≤ | 0.4-1 |
| CaCO3??≤ | 1%-4% |
| Acid-soluble?iron | 0.2-0.5 |
| PH | 7-9 |
| Moisture?≤ | 0.30% |
| L.O.I.?(800oC)≤ | 6%-22% |
| Abrasion?Degree | 80-100 |
| SiO2 | 60% |
| MgO | 31% |
| Fe2O3 | 0.3% |
| CaO | 0.5% |
| Al2O3 | ≤0.2% |
| Density (g/cm3) | 2.6-2.8 |
| Oil?absorption?capacity? | 35% |
| Pass?rate(45μm)??≥ | 98% |
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2.Physical Properties And Main Use:
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, plastic,?pharmaceutical, paper-making, etc.
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3.Chemnical properites of all series quality:
Sio2≥ | 30% | 35% | 50% | 55% | 60% |
Mgo≥ | 30% | 30% | 30% | 30% | 30% |
Cao≤ | 0.5% | 0.5% | 0.5% | 0.5% | 0.5% |
Fe2o3≤ | 0.5% | 0.5% | 0.3% | 0.3% | 0.3% |
Al2o3≤ | 0.3% | 0.3% | 0.3% | 0.3% | 0.3% |
Whiteness≥ | 95.86% | 93% | 90% | 91% | 90% |
L.O.I≤ | 6.5% | 6.5% | 7.0% | 6.5% | 6.5% |
PH | 7-9 | 7-9 | 7-9 | 7-9 | 7-9 |
| ? | ? | ? | ? | ? | ? |
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% |
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