Zine Oxide 99%/99.5%/99.7% Zine oxide; zinc oxide powder; zinc white (industrial grade) Zine Oxide 99% / 99.5% / 99.7% (we can also provide other content based on customer requirements) Main uses: white pigment (paint), rubber vulcanization active agents, reinforcing agent, rubber filler, organic synthesis catalyst, desulfurization agent for electrostatic copying, medicine for the system ointment, zinc paste, plaster and other . Appearance: White hexagonal crystal or powder. Molecular weight: 81.37 Quality standard: GB3185-92 Item Index BA01-05 (I) BA01-05 (II) Superior Best-quality Quality Superior Best-quality Quality (ZnO)%≥ 99.70 99.50 99.40 99.70 99.50 99.40 Metal (Zn)%≤ 0 0 0.008 0 0 0.008 PbO (Pb)%≤ 0.037 0.05 0.14 MnO (Mn)%%≤ 0.0001 0.0001 0.0003 CuO (Cu)%≤ 0.0002 0.0004 0.0007 HCl Insoluble Matter%≤ 0.006 0.008 0.05 Heat Loss %≤ 0.2 0.2 0.2 45um Sieve Residue%≤ 0.10 0.15 0.20 0.10 0.15 0.20 Water Soluble Matter%≤ 0.10 0.10 0.15 0.10 0.10 0.15 Volatile at 105â %≤ 0.3 0.4 0.5 0.3 0.4 0.5 Oil Absorption g/100g≤ 14 14 14 Color(Compared with the Standard Sample) approximate tiny slightly Reducing power(With the standard sample)%⧠100 95 90