MINERALLOGICAL COMPOSITION
Talc 96%
Residue magnessite and chlorite.
The product contains no detectable amounts of asbestos type minerals nor quartz.
CHEMICAL ANALYSIS
MgO |
31 % |
SiO2 |
60 % |
Al203 |
0,5 % |
CaO |
0,1 % |
FeO total |
2,2 % |
Fe acid soluble 1 M HCl, 100 0C |
0,2 % |
CO2 |
0,8 % |
H2O |
4,8 % |
CHEMICAL PROPERTIES
Loss on ignition |
DIN 51081, 1000 0C |
5,6 % |
Solubility in water |
DIN ISO 787/3 |
0,1 % |
Acid solubles |
3 % |
|
pH |
DIN ISO 787/9 |
9 |
PHYSICAL PROPERTIES
Specific gravity |
DIN ISO 787/10 |
2750 kg/m3 |
Tamped density |
ISO 787/11 |
490 kg/m3 |
Hardness (Mohs) |
1 |
|
Refractive Index |
1,57 |
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