Quartz Silica Ceramic Filler
CAS Number: 14808-60-7
High-purity ground quartz (SiO2) is one of the three principal raw materials in traditional ceramic bodies alongside kaolin and feldspar. Quartz acts as a refractory filler that controls thermal expansion, reduces drying shrinkage, and improves fired strength and dimensional stability. Particle size distribution and iron content are critical quality parameters for whiteness and fired properties.
Technical Specifications
| appearance | White fine powder |
| purity (%) | ≥99.5 |
| SiO2 content (%) | ≥99.5 |
| Fe2O3 content (%) | ≤0.02 |
| D50 particle size (µm) | 5–45 (various grades) |
Applications
- Refractory filler in porcelain, stoneware, and earthenware bodies
- Silica source in cordierite and glass-ceramic formulations
- Glaze raw material for matte and semi-transparent glazes
- Refractory castable and mortar aggregate
- Investment casting silica shell component
Key Features
- Ultra-low iron content preserves whiteness in fine ceramic products
- Multiple particle size grades for optimization of ceramic microstructure
- Reduces firing shrinkage and improves dimensional accuracy
- Consistent chemical purity from controlled mining and processing
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CAS Number
14808-60-7
Category
Ceramic / Glass AdditivesAvailability
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