SiO₂ ≥99.85% (typ. 99.92%) · D50 12±2 µm — crystalline silica micro-powder from high-purity quartz
SN-HS12 is a crystalline silicon dioxide (SiO₂) micro-powder manufactured from high-purity quartz raw material through precision crushing and grading. It secures a specification purity of SiO₂ ≥99.85% (typical 99.92%) while maintaining ultra-low typical metallic impurities — Al 35 ppm, Ca 5 ppm, Fe 3 ppm, K 6 ppm, Mg 0.5 ppm, Na 7 ppm — making it suitable for electronic and chemical formulations that demand both insulation reliability and color stability.
Particle size is controlled to D50 12±2 µm, with a typical distribution of D10 2.4 µm, D50 12.1 µm and D100 28.6 µm. The narrow, uniform distribution sustains stable flow and low viscosity even at high filler loading, improving moldability and surface quality. Moisture is held at ≤0.2% (typical 0.1%), suppressing agglomeration and void formation during storage and compounding.
The particle size distribution (PSD) can be adjusted according to the actual usage situation or user demand. With the high hardness (Mohs 7), excellent chemical stability and cost efficiency characteristic of crystalline silica, SN-HS12 is supplied reliably for a wide range of industrial filler applications.
Key Features
- 🧪 SiO₂ ≥99.85% (typ. 99.92%) — From high-purity quartz — typical purity comfortably above specification
- 🧼 Ultra-Low Metallic Impurities — Al 35 · Ca 5 · Fe 3 · K 6 · Mg 0.5 · Na 7 ppm (typical)
- 📐 Precise PSD · D50 12±2 µm — D10 2.4 · D50 12.1 · D100 28.6 µm — narrow, uniform distribution
- 💧 Low Moisture ≤0.2% (typ. 0.1%) — Suppresses agglomeration and voids for stable compounding and molding
- 💎 α-Quartz Crystal Structure — Mohs 7 hardness with excellent chemical stability
- 🔧 Customizable PSD — Particle size distribution adjustable per actual usage or user demand
Technical Specifications
| Item | Value |
|---|---|
| Product Code | SN-HS12 |
| Process | Crushing & grading of high-purity quartz |
| SiO₂ | Spec ≥99.85 % · Typical 99.92 % |
| Al | Spec ≤100 ppm · Typical 35 ppm |
| Ca | Spec ≤50 ppm · Typical 5 ppm |
| Fe | Spec ≤50 ppm · Typical 3 ppm |
| K | Spec ≤50 ppm · Typical 6 ppm |
| Mg | Spec ≤50 ppm · Typical 0.5 ppm |
| Na | Spec ≤50 ppm · Typical 7 ppm |
| Moisture | Spec ≤0.2 % · Typical 0.1 % |
| Particle Size D10 | Typical 2.4 µm |
| Particle Size D50 | Spec 12±2 µm · Typical 12.1 µm |
| Particle Size D100 | Typical 28.6 µm |
| Remark | The particle size distribution (PSD) can be adjusted according to the actual usage situation or user demand |
| Country of Origin | China |
Particle size, purity, surface treatment and packaging can be customized to your specification. Contact us for samples, TDS and quotations.