ZnO (99.9%) ZnO 99.9% min Zn（Metal） 0 45 um sieve residue 0.01%max MnO 0.00001%max Fe 0.0005%max Sn 0.05%max PbO 0.002%max CuO 0.0003% max L.O.I 0.2% max L.O.I at 130℃ 0.12%max HCl Insoluble Matter 0 Water Soluble Matter 0 BET 4.8-6.7 m2/g average particle size 0.20um Inpurities 0.01%max density 5.59g/cm3 E-mail: