Ceramic Grade Zinc oxide

English Name: Ceramic Grade Zinc oxide Molecular formula:ZnO Molecular weight: 81.39 ItemIndex99.7-99.59998-96Zinc oxide ( Zn ),% ≥99.7-99.59998-96Metallic matter ( Zn ),%No0.02Nolead oxide ( Pb ),% ≤0.037-0.0150.0050.18-0.2Oxide of manganese ( Mn ),% ≤0.0001-0.0003Nonoferric oxide( Fe ) , % ≤0.00010.00010.0002-0.001Insoluble matter in HCl,% ≤0.008-0.0120.020.05-0.1Loss on ignition,% ≤0.20.20.4-0.8105°C volatile substances %≤0.3-0.40.50.4-0.8Properties: white /slight yellow fine powder,specific gravity 5.5-6.5, melting point 1975°C, Zinc oxide evaporates in 1000 °C . it is amphoteric oxide insoluble in water, ethanol and ammonia, soluble hydroxide and ammonium chloride, while heated, it becomes yellow and resumes white after cooling down. Uses: Top grade ceramic Zinc Oxide is used in glaze of ceramic floor tile and low temp frit, or art enamel and material of ceramic. With big specific surface area and hiding power, can resolved the influence of the bottom material to the surface colour. With less element content of iron, when used as the raw materials of color glaze, it can make little colour difference. It has very good smoothness. Packing: 25kg/bag or as the client’s request