... ~46.5 Al2O3 , % 11.0~15.0 SiO2 , % 13.5~17.0 ZnO , % 15.0~18.0 Oil absorption, g/100g sample 35 ... ±10 Density, g/cm3 2.0~3.0 Moisture, % ≤3.0 ... Matter dissolved in water, % ≤1.0 pH value of water ... 6~8 Average Particle Size, micron ≤10.0 45 micron sieve residue, % ≤0.5 ( function(){ var aBigImageSrc = [ ...