Zirconium silicate

Zirconium silicate (CAS 10101-52-7), also sold under the trade name Ultrox, is a naturally occurring mineral processed into fine powder for industrial use.

Where is Zirconium silicate used?

• Ceramic glazes and tile manufacturing: whiteness and opacity without compromising firing performance at high temperatures
• Coatings and enamels: improved surface hardness and chemical resistance in industrial and architectural finishes
• Personal care: mild abrasive and opacifying agent in toothpaste and cosmetic formulations
• Plastics and elastomers: functional filler contributing flame retardancy and dimensional stability
• It functions as an opacifier, surface modifier and refractory filler.

Commercial specifications

• Fine white powder; particle size distribution is the primary specification variable
• Micronized grades are standard for cosmetic and coating applications
• Technical and ceramic grades are distinguished by zirconia content (ZrO₂ percentage) and D50 particle size
• Bulk bags and smaller packaged quantities