Manganese
MATERIAL OVERVIEW
Characteristics: Pure manganese is a hard, very brittle metal which cannot be fabricated. Like iron, it will tarnish in air and rusts in the presence of moisture. Due to its reactivity, it is easily oxidized, decomposes in water and readily dissolves in dilute mineral acids. Pure manganese is not found as a free element in nature, but is found in many minerals, principally pyrolusite, braunite, and psilomelane. Manganese is considered essential for plant and animal life.
Applications: The largest use of manganese is in metal alloys. Manganese is used in many steel alloys and aluminum alloys to improve strength, malleability and corrosion resistance. A manganese alloy is even used in some US one dollar coins. Manganese compounds are used as gasoline additives, as a reagent in organic chemistry, and in batteries. Manganese dioxide has been used in the manufacture of glass to remove color caused by iron impurities and as a pigment in glass, ceramics and paint. Manganese oxides have been used as a pigment since prehistoric times.
Hazards: Chronic inhalation of high levels of manganese may result in a syndrome called manganism with symptoms similar to Parkinson’s disease. Dust or powder is flammable. Use dry chemical to extinguish. Exposure limits: ACGIH/TLV: elemental and inorganic compounds 0.02 mg/m3 (respirable), OSHA: compounds and fume, 5 mg/m3 (ceiling).
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GENERAL PROPERTIES
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Symbol: |
Mn |
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Atomic Number: |
25 |
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Atomic Weight: |
54.9380 |
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Density: |
7.21-7.44 gm/cc |
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Melting Point: |
1244 oC |
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Boiling Point: |
1962 oC |
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Thermal Conductivity: |
0.0781 W/cm/K @ 298.2 K |
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Electrical Resistivity: |
185.0 microhm-cm @ 25 oC |
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Electronegativity: |
1.5 Paulings |
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Specific Heat: |
0.114 Cal/g/K @ 25 oC |
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Heat of Vaporization: |
53.7 K-Cal/gm atom at 1962 oC |
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Heat of Fusion: |
3.45 Cal/gm mole
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TYPICAL ANALYSES - Impurities in ppm
|
Material / Purity: |
3N |
| Cu | 10 |
| Fe | 50 |
| S | 400 |
| Mg | 40 |
| Si | 60 |
MANGANESE ROD
|
Material |
Purity |
| Manganese Rod .125” | 3N |
| Manganese Rod .250” | 3N |
Manganese rod is a cast product, cut to order and is sold by the inch. Call or This email address is being protected from spambots. You need JavaScript enabled to view it. for additional diameters or custom sizes.
MANGANESE SPUTTERING TARGETS
|
Material |
Purity |
| Manganese Sputtering Target 2"D X .125"T | 3N |
| Manganese Sputtering Target 2"D X .250"T | 3N |
| Manganese Sputtering Target 3"D X .125"T | 3N |
| Manganese Sputtering Target 3"D X .250"T | 3N |
| Manganese Sputtering Target 4"D X .125"T | 3N |
| Manganese Sputtering Target 4"D X .250"T | 3N |
Targets are made to order and packaged individually. Call or This email address is being protected from spambots. You need JavaScript enabled to view it. for additional diameters, thicknesses or custom sizes.
MANGANESE POWDER, FLAKE, & PIECES
|
Material |
Purity |
Manganese Flake   |
3N |
| Manganese Pieces -3mm | 4N |
| Manganese Powder-100 Mesh | 2N8 |
| Manganese Powder-325 Mesh | 3N |
Powder, flake, and pieces are packaged to order and sold by the gram or kilogram. Call or This email address is being protected from spambots. You need JavaScript enabled to view it. for additional specifications or custom requirements.
MANGANESE COMPOUNDS
|
Material |
Purity |
Manganese Carbonate MnCO3  |
3N |
| Manganese Fluoride MnF2 -80 Mesh |
2N5 |
| Manganese Oxide MnO -100 Mesh |
3N |
| Manganese Oxide Mn2O3 -325 Mesh |
2N |
| Manganese Oxide Mn3O4 -325 Mesh |
3N |
| Manganese Sulfide MnS Pieces |
2N5 |
| Manganese Sulfide MnS -325 Mesh |
4N |
| Manganese Tungstate MnWO4 -200 Mesh |
3N |
Compounds are packaged to order and sold by the gram or kilogram. Call or This email address is being protected from spambots. You need JavaScript enabled to view it. for additional specifications or custom requirements.
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