Product Description
Ground Silica
Produced from high purity silica, precision ground to fine powder, mesh 325. Our ground silica are inherently inert, bright white, with low moisture and are at least 99.4% Si02.
Special processing techniques assure controlled particle size distribution, which means elimination of excessive coarse and fine particles. This makes our ground silica ideal for plastics and rubber, polishes and cleansers, paints, ceramic frits and glazes, fiberglass, precision castings and more.
Silica is frequently referred to as “Potter’s Flint” and is often just ground sandstone. It is used interchangeably with Quartz.
Technical details:
Physical Properties:
- Material: SILICA - SiO2
- Melting Point: 3119oF/1715oC
- Hardness: 7 Mohs
- pH: 7
- Reflectance: 89%
- Yellowness index: 3.8
- Specific Gravity: 2.65
- Bulk density 1.56 - 1.60 g/cc
Chemical Analysis (Typical)
| SiO2 (Silicon Dioxide) | 99.5% |
| Fe2O3 (Iron Oxide) | 0.022% |
| Al2O3 (Aluminum Oxide) | 0.3% |
| TiO2 (titanium Dioxide) | 0.01% |
| CaO (Calcium Oxide) | 0.02% |
| MgO (Magnesium Oxide) | 0.01% |
| Loss On Ignition | 0.2% |
Brand name: SIL-CO-SIL® 52
