Zirconium Silicate (ZrSiO₄) is a high-purity industrial mineral widely used in ceramics, refractories, and casting applications. It is available in various chemical grades such as ZrSiO₄ 63%, 64%, 65%, and offered in multiple particle sizes including 60 mesh, 200 mesh, 325 mesh, and ultra-fine 400–1250 mesh to meet different production requirements. Zirconium Silicate provides excellent whiteness, chemical stability, heat resistance, and wear resistance.
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Zirconium Silicate (ZrSiO₄) is a refractory mineral with high melting point, chemical inertness, and excellent thermal stability, making it ideal for high-temperature industrial applications. It is commonly used as a key raw material in refractory castables, ceramic glazes, zircon bricks, and advanced ceramics.
Due to its high density and low thermal expansion, Zirconium Silicate provides superior resistance to thermal shock, abrasion, and chemical corrosion. It also enhances the mechanical strength and durability of refractory and ceramic products. High-purity zirconium silicate is preferred in applications such as foundry molds, glass furnaces, and metallurgical processes where consistent performance at extreme temperatures is critical.
| Specific Gravity | 4.69 |
| Melting Point | 2500°C |
| Refractive Index | 1.97 |
| Mohs Hardness | 7.5 |
| Thermal Expansion Coefficient | 4.2*10-6 |
| Apprearance | White or off white powder |
| Item | RS65 | RS64.5 | RS63.5 |
| ZrO2+HfO2 | 65.0 min | 64.5 min | 63.5 min |
| Fe2O3 | 0. 06 max | 0. 08 max | 0. 12 max |
| Ti02 | 0.10 max | 0.12 max | 0.18 max |
| Type | Average mesh | Application |
| RS-1.0 | D50≤1.0um | High-grade sanitary porcelain High-grade daily-use porcelain High-grade crystal brick |
| RS-1.2 | D50≤1.2um | |
| RS-1.5 | D50≤1.5um | Middle and low class sanitation porcelain,external and internal brick, archaized brick, engobe, body, etc. |
| RS-2.0 | D50≤2.0um |
Zirconium Silicate is widely used in:
Refractory industry: zircon bricks, high-temperature castables, ramming mass
Ceramics: ceramic glazes, tiles, sanitary ware, advanced ceramics
Foundry industry: investment casting molds, sand molds
Glass industry: glass melting furnaces and lining materials
Metallurgical industry: high-temperature linings and protective coatings
Chemical industry: corrosion-resistant linings and protective layers
Electronics and aerospace: advanced ceramic components requiring thermal stability
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