Zinc oxide for Tyre

English Name: Zinc oxide for Tyre Molecular formula:ZnO Molecular weight: 81.39 ItemIndexZinc oxide ( ZnO) , % ≥ 99.799.4-99.598.0-99.097.0-98.0Metallic matter ( Zn) , % ≤ nononoNolead oxide ( Pb) , % ≤ 0.03-0.050.10-0.140.30-0.500.80-1.00Oxide of manganese ( Mn) , % ≤ 0.00010.00030.00050.0008copper oxides ,( Cu), % ≤ 0.00020.0010.0060.01Insoluble matter in HCl , % ≤ 0.0060.03-0.050.08-0.100.20-0.40Loss on ignition , % ≤ 0.2-0.40.4-0.60.8-1.01.2-1.4Residue on screen( 45um meshes ), % ≤ 0.1-0.20.2-0.40.5-0.81.0-1.2Water soluble matter ,% ≤ 0.1-0.20.2-0.40.5-0.81.0-1.2Properties: 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. The particle size is very small and well-proportioned so that it can be soluted with other elements very well, and lower the physical parametererror of the electronic component.. High purity, it is convenient to operate and better for the efficient use. Other elements is very little, little affect for the electronic component, can reduce the error for the practical parameter. Uses: It is used vulcanization, accelerator and reinforcing agent, dosage is 5%. Packing: 25kg/bag or as the client’s request