Zinc Oxide

Another name Zinc whiteMolecular formula, Reaction formula ZnO, Zn(Vapor) +1/2O2 ? ZnO CAS No : 1314-13-2 Characteristics White powder(hexagonal system ) Molecular weight : 81.37 Gravity : 5.47 - 5.64 Specific gravity : (g/cc) : 0.3 - 0.6 PH : 6.95 - 7.37 Refractive index : 1.94 - 2.11 Specific heat(cal/mol/deg) : 9.61(at 25?) Melting point : 1,800? Oil absorption(%) : 10 -25 Mean particle(?) : 0.5 - 0.8 Bet(?/g) : 4.0 - 6.0 Solubility : Amphoteric oxide, Soluble in acid, alkali,Insoluble in water and alcohol Toxicology : Non-toxic It turns into yellow when heated 300?, but it return to its natural color if it is cool Capability to block strong ultraviolet rays Absorb carbon dioxide out of the air Application No. Use Main Functions 1 Rubber industry Main raw material of rubber products is natural rubber latex, which is added the sulfur to give rubber elasticity It is used for vulcanization accelerator which accelerate the reaction of rubble and sulfur and mixed 4-5% of rubber weight.The biggest consumer in zinc-oxide market. 2 FERRITE industry Ferrite is necessary for the raw material to absorb electric wave and making magnetic field of color TV, radio, microwave range. 3 Coat treatment It is used for Anti-rust paints of coat treatment which makes film of zinc phosphate to give surface of metal corrosion resistance. 4 Glass industry It is added to block the ultraviolet in the glass for TV 5 Ceramic industry It is used for enamel and mixed material for ceramics 6 Other Use 1) Electronics : Varistor, Gas Sensor, Speaker etc2) Feed stuff : It is a little added for feed stuff 3) Catalyst : Methanol, Catalyst to make acetone 4) Medicine, Cosmetic : Sun block, Bandages, Ointment 5) Etc : Paints, Pigment, Battery Specification GRADE S-1 KS-1 KS-2 ZnO(%)Water SolubleMoisture(%)Pb(%)Cd(%)Mean Particle Size(?)Fitness thru 325 Mesh(%)Spec. Surface Area (?/g) 99.7 Min0.05 Max0.25 Max0.005 Max0.002 Max0.5-0.899.95 Max4.0-6.0 99.5 Min0.05 Max0.25 Max0.01 Max0.005 Max0.5-0.899.95 Max4.0-6.0 99.3 Min0.1 Max0.25 Max0.25 Max0.05 Max0.5-0.899.99 Max4.0-6.0 Manufacturing Process French Types Available Powder, Granular, Pelletized Typical Result Grade S-1 KS-1 KS-2 ZnO(%)Water SolubleMoisture(%)Pb(%)Cd(%)Mean Particle Size(?)Fitness thru 325 Mesh(%)Spec. Surface Area (?/g) 99.80.020.10.001trace0.5-0.899.994.0-6.0 99.70.020.10.005trace0.5-0.899.994.0-6.0 99.50.030.10.080.0020.5-0.899.954.0-6.0 Manufacturing Process French Types Available Powder, Granular, Pelletized Packing Unit Classification Unit Weight Packing Style Powder Type 20kg Kraft Paper Bag Powder Type 300kg, 450kg, 500kg PP Woven Bag Granular Type 500kg, 800kg, 900kg, 1000kg PP Woven Bag