@Molecular formula:ZnO @Molecular weight:81.37; @ Basic Characteristics: Hexagonal crystals or a white powder,no smack;Melting point: 1975 ℃; Solubility: do not dissolve in water, ethanol, dissolved in acid, sodium hydroxide solution, ammonium chloride; density: the relative density (water = 1) 5.606, stability: stability. @Specifications: product index Zinc Oxide99% Zinc Oxide 99.5% Zinc Oxide 99.7% Content(ZnO) ≥ 99% 99.5% 99.7% MnO ≤ 0.001% 0.0005% 0.0004% PbO ≤ 0.15% 0.05% 0.037% CuO ≤ 0.001% 0.0005% 0.0004% Heat Loss ≤ 0.3% 0.3% 0.3% Hcl Insoluble Matter ≤ 0.01% 0.01% 0.01% Water Soluble Matter ≤ 0.1% 0.1% 0.1% 45um Sieve Residue ≤ 0.15% 0.15% 0.15% @Packing: 25kgs in net bag, 20 mts in the 20'Fcl. @Uses: Rubber Industry, Paints Industry, Ceramics Industry, floor title, glass, feed additive, etc.