Engineered through advanced beneficiation, chemical purification, and thermal treatment processes to meet the exacting standards of the semiconductor and solar industries.
GSK India Quartz applies proprietary multi-stage purification protocols designed to reduce transition metal and alkali impurities to parts-per-billion (ppb) levels. Our resulting sand is the essential building block for high-performance fused silica products worldwide.
99.998% SiO₂ Purity
Formulated to withstand extreme thermal conditions, our 4N8 quartz sand provides exceptional structural stability and low bubble content during melting processes.
99.999% SiO₂ Purity
Our highest standard of ultra-high purity quartz sand. Rigorously processed to virtually eliminate trace impurities, ensuring maximum transmittance and minimal contamination in sensitive semiconductor environments.
Precision crushing and optical/color sorting to remove macroscopic mineral inclusions.
High-intensity magnetic fields remove iron-bearing minerals and transition metals.
Proprietary acid washing dissolves deeply embedded structural impurities.
High-temperature vacuum baking removes fluid inclusions and ensures morphological stability.
The following indicative specifications represent our standard high-performance platforms. Custom particle size distribution and targeted impurity reduction available upon request.
Solar crucibles, electronic glass, fused silica components
| Parameter | Typical Specification |
|---|---|
| SiO₂ Purity | ≥ 99.998 % |
| Fe₂O₃ | ≤ 8 – 12 ppm |
| Al₂O₃ | ≤ 15 – 25 ppm |
| TiO₂ | ≤ 2 – 5 ppm |
| CaO | ≤ 5 ppm |
| Na₂O + K₂O | ≤ 8 ppm |
| Loss on Ignition | ≤ 0.05 % |
| Particle Size | Customized (100 µm – 500 µm typical) |
| Bulk Density | 1.45 – 1.60 g/cm³ |
| Moisture | ≤ 0.02 % |
Semiconductor quartzware, optical fibre preforms
| Parameter | Typical Specification |
|---|---|
| SiO₂ Purity | ≥ 99.999 % |
| Fe₂O₃ | ≤ 3 – 5 ppm |
| Al₂O₃ | ≤ 8 – 12 ppm |
| TiO₂ | ≤ 1 – 2 ppm |
| CaO | ≤ 2 ppm |
| Alkali Metals | ≤ 3 ppm |
| Loss on Ignition | ≤ 0.03 % |
| Particle Size | Ultra-controlled grading available |
| Bulk Density | 1.48 – 1.62 g/cm³ |
| Moisture | ≤ 0.01 % |
Learn how our 5N Purity Quartz Sand is transformed into precision-engineered fused quartz components for complex wafer fabrication lines.