High Purity Manganese Dioxide

La description

1、Product Name: High Purity Manganese Dioxide 2、Chemical formula & Molecular weight: Chemical formula MnO2；Molecular weight *6.*3 3、Features of Product Manganese dioxide is a black or dark brown crystals or amorphous powder. Insoluble in water and nitric acid, releases oxygen in hot concentrated sulfuric acid and produce manganese sulfate, releases chlorine in the hydrochloric acid, generated manganese chloride. With caustic alkali and oxidants permanganate eutectic formation is strong oxidizer. Currently, there are five kinds of crystal form in manganese dioxide; the most valuable of them are γ-and β-type. The manganese dioxide product of our company is high-purity β-type manganese dioxide, high purity, free of other valence manganese oxides, MnO2 content ≥ *9%, particle size is *- 7μm, proportion ≥ 2.2g/ml and stable performance. 4、Main Purpose The manganese dioxide is widely used many ways. It is the magnetic oxygen materials for Mn-Zn Fe in electronics industry; raw materials for Fe-Mn alloy in steel industry; Hot agent in casting industry; Oxidant and catalyst in chemical industry; The catalyst of hydrogen sulfide, sulfur dioxide in environmental protection industry; Used as adsorbent of carbon monoxide gas masks; The drier of Paint and ink; Purification of firework and water. In the production of battery, it used extensively for the first and secondary battery manufacture, it is important material for battery cathode material. The high purity manganese dioxide made by our company used as the cathode material of tantalum capacitors, it also can be used to produce top grade ceramic crafts. Items Specification HPMD-A HPMD-B MnO2(%) ≥ *9 *5 Fe(ppm) ≤ **0 **0 Pb(ppm) ≤ *0 *0 As(ppm) ≤ 5 5 K(ppm) ≤ **0 **0 Na(ppm) ≤ **0 **0 Ca(ppm) ≤ **0 **0 Mg(ppm) ≤ **0 **0 SO**- (%) ≤ 0.*8 0.1 Insolubles in hydrochloride acid(%) ≤ 0.*2 0.*2 Particle Size Distribution D*0(μm) **7 **7 Crystal Form β Type Manganese Dioxide β Type Manganese Dioxide