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2 Years
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| Brand Name : | JD |
| Model Number : | JD-MDEG-99 |
| Certification : | ISO9001 |
| Payment Terms : | T/T |
| Supply Ability : | 1000TONS |
| Delivery Time : | 5 DAYS |
Manganese Dioxide / 99% Pure/ Reagent Grade/Fine Powder
Product Name: Manganese Dioxide
CAS No.: 1313-13-9
Purity :70% ,99%
Model NO: JD-MDEG-99
Grade :Electronic grade
Molecular formula::MnO2
Chemical Parameters:
| Items | Specifications | Result |
| MnO2(%) | ≥96.5% | 97% |
| Ca(%) | ≤0.1 | 0.013 |
| Mg(%) | ≤0.05 | 0.012 |
| SO4(%) | ≤0.3 | 0.08 |
| Pb(%) | ≤0.002 | 0.0001 |
| Fe(%) | ≤0.01 | 0.003 |
| 粒度分布 D50 (μm) | 15-30 | 22.5 |
| K% | ≤0.01 | 0.004 |
| As% | ≤0.001 | 0.0002 |
Chemical Parameters:
| Items | Specifications | Result |
| MnO2 (%) | ≥99 | 99.15 |
| Ca(%) | ≤0.02 | 0.007 |
| Mg(%) | ≤0.02 | 0.005 |
| SO4(%) | ≤0.08 | 0.051 |
| Pb(%) | ≤0.002 | 0.0005 |
| Fe(%) | ≤0.01 | 0.005 |
| 粒度分布 D50 (μm) | 1-5 | 2.7 |
| K% | ≤0.01 | 0.0021 |
| Na% | ≤0.01 | 0.004 |
What is the applications of Manganese Dioxide Powder
Used as a depolarizer for dry batteries, a catalyst and oxidant in
the synthesis industry, a coloring agent, decolorizer, and iron
removal agent in the glass industry and enamel industry. Used in
the manufacture of metal manganese, special alloys, ferromanganese
castings, gas masks and electronic material ferrites, etc. In
addition, it can also be used in the rubber industry to increase
the viscosity of rubber. It can also be used as a catalyst in
chemical experiments.
Organic synthesis use
Manganese dioxide is very useful in organic chemistry. The forms of
manganese dioxide used for oxides vary. Because manganese dioxide
has multiple crystal forms, the chemical formula can be written as
MnO2·x(H2O)n, where x is between 0 and 0.5, and n can be greater than 0
. Manganese dioxide can be produced in the reaction of potassium
permanganate (KMnO₄) and manganese sulfate (MnSO₄) at different pH.
One of the special chemical reactions for manganese dioxide is to
convert alcohols into aldehydes. Even if the alcohol has a double
bond, it will not be oxidized by manganese dioxide: cis-RCH=CHCH2OH
+ MnO2 → cis-RCH=CHCHO + H2O + MnO
The products in it will not be oxidized no matter how active it is.
Diols can be oxidized to dialdehydes by manganese dioxide. Other
manganese dioxide has many reactions and can be used to oxidize
amines, aromatics and triols.
Laboratory use
Used as a catalyst for the decomposition of hydrogen peroxide to
produce oxygen; as a catalyst for heating potassium chlorate to
decompose to produce oxygen; thermite reaction with elemental
aluminum powder to produce manganese. Used as pigments, yellow
glass, etc.; react with hot concentrated hydrochloric acid to
produce chlorine; react with molten caustic potassium (potassium
hydroxide) in the air to produce potassium manganate; in the
decomposition reaction of potassium permanganate, manganese dioxide
is used as high Self-catalyst of potassium manganate.
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