Uses
The unique properties of T 30 Talc make it an ideal carrier and functional extender in cosmetics and pharmaceuticals. It is also widely used in high-performance paints and coatings, thermoplastic polymers, waxes, and as a slip agent.
Typical Chemical & Physical Analysis
Property / Attribute – Specification
| # | characteristic | value |
|---|---|---|
| 1 | Appearance | Fine, free-flowing powder, free from visible contamination |
| 2 | Fineness (Mesh) | 200-700 |
| 3 | Brightness / Whiteness | 80-99.9% |
| 4 | SiO₂ Content | 60.1% |
| 5 | Oil Absorption | 35% (Linseed Oil) |
| 6 | Fe₂O₃ | 0.52% |
| 7 | Specific Gravity | 2.6 (Helium Displacement) |
| 8 | CaO Content | 0.4% |
| 9 | Hardness | 1 (Mohs scale) |
| 10 | Reflectance | >65 (Opacity Reflectometer) |
| 11 | Refractive Index | A 1.58 |
| 12 | pH (10% Aqueous Suspension) | 7.0-10% |
| 13 | Acidity & Alkalinity | 2.0% max |
| 14 | Loss on Ignition (LOI) | 3.5-7% max |
| 15 | Magnesium Oxide (MgO) | 30-32.5% max |
| 16 | Solubility in Water | 0.5% max |
| 17 | Solubility in HCl | 5% max |
| 18 | Bulk Density (Tapped) | 0.40-0.90 g/cc |
| 19 | Chloride Content | 150-250 ppm max |
| 20 | Acid Soluble Substance | 1.5-2.0% max |
