High purity manganese dioxide
1. Products name: High purity manganese dioxide
2. Molecular formula: MnO2 ; Molecular weight:86.93
3. Products property: Manganese dioxide is one kind of black brown crystal or no aptotic shape powder. It can’t dissolve in water and nitric acid, when in hot dense vitriol, it will release oxygen and create manganese sulphate, release chlorine and form manganese chlorine in hydrochloric acid. When mixed with caustic soda and oxidant eutectic forma permanganate, it is a strong oxidant. At present,there find five crystals styel of manganese dioxide, the most application value type are γ type and βtype. Our high purity manganese dioxide is pure β type,in high purity,don’t contain other valences, MnO2 ≥99%,particle size 4~7μm,proportion≥2.2g/ml, and performance is stable.
4. Use: Manganese is widely used in all kinds of industrial,in ecectronic industrial,manganese dioxide used as Mn-Zn ferrite magnetic material, Mn-Fe alloy material of steel-making,heating solvent in Moulding industrial,oxidant and activator in chemical industrial. In environment protect industrial, manganese dioxide can purify the H2S,SO2 of exhaust gas,and as an activator to purify the exhaust gas of car etc. Our high purity manganese dioxide mainly apply in electronic industrial to produce super tantalum capacitors,it is an important electrode material of tantalum capacitors,meanwhile it could apply in top grade chinaware,arts and crafts manufacture,activator and oxidant in pharmaceutical and food.
1、 Technical index
|
MnO2
|
%
|
≥99%
|
|
（Fe）
|
ppm
|
<100
|
|
（Cd）
|
ppm
|
<5
|
|
（As）
|
ppm
|
<5
|
|
（Cu）
|
ppm
|
<10
|
|
（K）
|
ppm
|
<10
|
|
（Pb）
|
ppm
|
<20
|
|
HCL-insoluble
|
%
|
≤0.006
|
|
（Cl）
|
%
|
≤0.001
|
|
（SO42-）
|
%
|
≤0.05
|
|
particle size
|
AVG Size
|
4~7μm
|
|
Crystal type
|
|
βtype
|
6. Packing: 25kg fiber drum, maked by customer’s demand.
7. Storage: in draught and dry place .
|
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