... 50nm 2. Purity 99.9%+ 3. Nontoxic white powder 4. Dispersibility Appearence Powder Color White Particle Size 40-50nm Purity 99.9 ... %+ Zirconium dioxide nano powder (ZrO2) application:In atoleine, CCl4, painting, resin, paint, lubricating ... in lubricating grease, ceramic material, resin, adhesives, elastomer, high-grade printing ink, sealant, top grade painting, etc.