Zinc Oxide 1 Purity: 99.7%,99.5%,99% 2 Supply rubber grade, industry grade, ceramic grade,paint.ink 3 Soluble in acid zinc oxide Item IndexContent (ZnO)%99Min99.5Min99.7MinMnO%0.003 max0.0005Max0.0004MaxPbO%0.001 max0.05Max0.037MaxCuO%0.0004 max0.0005Max0.0004MaxHeat Loss%0.020max0.3Max0.3MaxHCl Insoluble Matter%20ppm Max0.01Max0.01MaxWater Soluble Matter%10ppm max0.1Max0.1Max45um Sieve Residue%0 ...