Product Description
Zirconium Silicate, commonly known as Zircon Flour, is a high-purity specialty mineral produced from natural zircon. Each lot is manufactured to strict specifications and tested for physical and chemical compliance.
Available in multiple particle size grades (75 µm, 45 µm, 5 µm, and 1.2 µm), zirconium silicate offers versatility for demanding applications. The material exhibits off-white to cream coloration and fine powder consistency.
Main Applications
- Investment casting shell and core materials
- Refractory coatings for high-temperature furnaces
- Glaze opacifiers for ceramics and tiles
- Foundry molds and cores
- Grinding media and polishing compounds
- Abrasives for precision grinding
Technical Specifications
Chemical Composition (by Weight %)
| Ingredient | Unit | 75 µm | 45 µm | 5 µm | 1.2 µm |
|---|---|---|---|---|---|
| Zr(Hf)O₂ | % min | 65.0 | 65.0 | 65.0 | 65.0 |
| TiO₂ | % max | 0.15 | 0.15 | 0.15 | 0.15 |
| Fe₂O₃ | % max | 0.10 | 0.10 | 0.10 | 0.10 |
| Al₂O₃ | % max | 0.70 | 0.70 | 0.70 | 0.70 |
| SiO₂ | % max | — | — | — | 33.0 |
| U + Th | ppm | ≤ 750 | ≤ 750 | ≤ 750 | ≤ 750 |
| Moisture (110 °C) | % max | 0.10 | 0.10 | 0.10 | 0.10 |
Physical Properties
Appearance
Fine powder, off-white to cream color
Testing Method - Radioactivity
Subcontract accredited laboratory
Testing Method - Moisture
Moisture balance at 110 °C
Particle Size Distribution
Measured using Mastersizer 3000:
📦 Packaging
25 kg / 50 lb bags, 1-ton jumbo bags (optional), Palletized and shrink-wrapped
Storage & Handling
- Store in a dry, covered area
- Avoid contamination and moisture absorption
- Use PPE to avoid fine-powder inhalation
- Shelf life: 24 months when stored in original packaging under dry conditions