For ceramics, milk white glaze, paint enhancer, etc.
used in building materials industry, used at the melt unit and wall of kilins in glass manufacture,ceramics pigment,ect...

Parameter    index
 
ZrO2+HfO2    65.0%min
 
SiO2         33.0%max
 
Fe2O3        0.1%max
 
TiO2         0.3%max
 
L.O.I        0.5%max
 
Moisture     1%max
 
Average particle diameter(D50) 1.5um
 
Particle(um) 98%<5um
 
Specific gravity 4.69
 
Hardness     7.5
 
Coefficient of thermal expansion 134.4 * 10