IOTALK no.10
This 2-micron talc is a highly lamellar talc product. Because of its high brightness, purity and fineness of grind, it is recommended for high quality plastics and paint.
| MINERALOGICAL COMPOSITION: | Talc > 98.0% Chlorite < 1.5% Calcite Trace Quartz Trace Asbestos Not detected |
|
| PACKAGING: | 1t bulk bags | 20 kg bags, shrinkwrapped & palletised |
| PHYSICAL PROPERTIES: | TYPICAL | |
|---|---|---|
| Particle size distribution | < 8.5 micron < 3.0 micron < 2 microns <1.2 micron |
98% 70% 50% 30% |
| Average particle size (D50) | 2.0 micron | |
| Dry sieve test (ALPINE) (> 25 micron) | Maximum | 0.01% |
| Oil absorption | 35 g/100g | |
| Optical properties (Datacolor SF600+): | ||
| L* | Minimum | 97.30 |
| a* | Maximum | 0.07 |
| b* | Maximum | 1.40 |
| Refractive index | 1.57 | |
| pH value (ISO 787/9) | 8 | |
| Specific gravity/Density (ISO 787/10) | 2.75 g/ml | |
| Bulk Density (ISO 787/11) | 0.50 g/ml | |
| Loose bulk Density | 0.30 g/ml | |
| Mohs hardness | 1 | |
| Specific Surface Area (BET) | 10.5 m2/g | |
| Moisture content | Maximum | 0.2% |
| CHEMICAL ANALYSIS: | TYPICAL | |
| SiO2 | Minimum | 61.0% |
| MgO | Minimum | 31.0% |
| CaO | Maximum | 0.3% |
| Fe2O3 | Maximum | 0.3% |
| Al2O3 | Maximum | 0.3% |
| HCl insoluble content | Maximum | 1.5% |
| Loss on ignition (at 1000 °C) | Maximum | 6.0% |
| IOTALK No. 10 is a highly lamellar talc product. Because of its high brightness, purity and fineness of grind it is recommended for high quality plastics and paints. | ||