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Composition: Mn
Form: Flake
Material: Manganese
CAS Number: 7439-96-5
Commodity: Metals
Purity: 99.5%
Maximum Flake Size: 25mm
Manganese Flakes, produced from commercially pure manganese, are recognized for their metallic luster, high reactivity, and crucial role in alloying and metallurgical processes. The flake form provides excellent handling characteristics and exposes a large reactive surface area, facilitating efficient dissolution and incorporation into alloys. Industries such as steelmaking, nonferrous metallurgy, battery production, and chemical processing rely heavily on manganese flakes. They are specifically used in desulfurization and deoxidation of steel, as alloying agents to enhance toughness and wear resistance, and as raw materials in dry cell and alkaline batteries. Research continues to highlight the importance of pure manganese in both powder metallurgy and advanced materials, where its role as a base element provides mechanical reinforcement and electrochemical performance. Manganese Flakes thus stand as a fundamental material bridging industrial utility and scientific innovation, underpinning applications from large-scale steelmaking to precision technologies.
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Material Properties for Metals

Atomic Properties
Element Value
Atomic number 25
Crystal structure Body centred cubic
Electronic structure Ar 3d⁵ 4s²
Valences shown 1, 2, 3, 4, 6, 7
Atomic weight( amu ) 54.938
Thermal neutron absorption cross-section( Barns ) 13.3
Photo-electric work function( eV ) 3.8
Atomic radius - Goldschmidt( nm ) 0.112
Ionisation potential( No./eV ) 2/ 15.64
Ionisation potential( No./eV ) 3/ 33.67
Ionisation potential( No./eV ) 4/ 51.2
Ionisation potential( No./eV ) Jun-95
Ionisation potential( No./eV ) 5/ 72.4
Ionisation potential( No./eV ) 1/ 7.43
Mechanical Properties
Element Value
Hardness - Mohs 5
Material condition Polycrystalline
Poisson's ratio 0.24
Bulk modulus( GPa ) 118
Tensile modulus( GPa ) 191
Electrical Properties
Element Value
Electrical resistivity( µOhmcm ) 160@20@20°C
Physical Properties
Element Value
Boiling point( C ) 1962
Density( gcm⁻³ ) 7.4@20°C
Thermal Properties
Element Value
Melting point( C ) 1244
Latent heat of evaporation( J g⁻¹ ) 4207
Latent heat of fusion( J g⁻¹ ) 267
Specific heat( J K⁻¹ kg⁻¹ ) 477@25°C
Thermal conductivity( W m⁻¹ K⁻¹ ) 7.81@0-100°C
Coefficient of thermal expansion( x10⁻⁶ K⁻¹ ) 23@0-100°C

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