Re: Zinc Oxide 99%Tech grade Appearance: White powder Specification: ZnO: 99% min MnO: 0.001% max PbO: 0.15% max CuO: 0.001% max Heat Loss: 0.3% max HCL Insoluble Matter: 0.01% max Water soluble matter: 0.1% max 45um Sieve Residue: 0.15% max Packing: 25kg/bag, 20MT/20FCL Re: Zinc Oxide 99.5%Tech grade Appearance: White powder Specification: ZnO: 99.5% min MnO: 0.0005% max PbO: 0.05% max CuO: 0.0005% max Heat Loss: 0.3% max HCL Insoluble Matter: 0.01% max Water soluble matter: 0.1% max 45um Sieve Residue: 0.15% max Packing: 25kg/bag, 20MT/20FCL Re: Zinc Oxide 99.7%Tech grade Appearance: White powder Specification: ZnO: 99.7% min MnO: 0.0004% max PbO: 0.037% max CuO: 0.0004% max Heat Loss: 0.3% max HCL Insoluble Matter: 0.01% max Water soluble matter: 0.1% max 45um Sieve Residue: 0.15% max Packing: 25kg/bag, 20MT/20FCL