It is widely used in the fields of EMC, high-tech electronic materials, high grade paints, etc.
| Items | Unit | Typical value | Test Method | |
|---|---|---|---|---|
| Laser method | D50 | µm | 6.19 | Laser Analyzer |
| D100 | µm | 21.4 | ||
| S.S.A. | m2/g | 1.4 | Nitrogen Adsorption Method | |
| Items | Unit | Typical value | Test Method | |
|---|---|---|---|---|
| Chemical Composition | SiO2 | % | 99.78 | Weight Method |
| Fe2O3 | ppm | 60 | Spectrophotometer | |
| Moisture | % | 0.04 | Weight Method | |
| Extraction Water | Ec | µs∕cm | 1.0 | Conductivity Meter |
| Na+ | ppm | 0.8 | AAS | |
| Cl- | ppm | 0.9 | Automatic Potential Titrator | |
| pH | — | 5.20 | PH Meter | |
Above specification are for common uses,and can be adjusted upon user’s request.