The whitening effect of zirconium silicate is due to the formation of oblique zircon after the firing of ceramics, so as to form scattering of incident light waves, which is generally called large particle scattering or MieScattering.  Combined with the theoretical calculation and the actual situation of powder production, the best opacification effect will be achieved if the D50 value of high-performance zirconium silicate is controlled below 1.4um and D90 value is controlled below 4.0um (the measured value of laser particle analyzer made in Japan shall be taken as the standard).  The concentrated particle size range is very important in the whitening effect of zirconium silicate, which requires the narrow distribution of particles in the grinding process of zirconium silicate as far as possible .Our zirconium silicate controls the value of D50 between 0.950um and 0.900um,D90 is controlled between 1.6um and 1.7um.This will maximize the whitening effect of zirconium silicate.Customers can customize products according to their own needs, but no matter what the purity of the product we will give you the top quality.  Zirconium silicate is also a wear-resistant matterial and a high quality fireproof materials.