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Physical Properties of Molybdenum and Cobalt


Physical Properties of Cobalt and Molybdenum


Physical Properties

Melting Point
2,617.00 °C   
5
1,495.00 °C   
29

Boiling Point
4,612.00 °C   
9
2,870.00 °C   
34

Appearance
  
  

Physical State
Solid   
Solid   

Color
Gray   
Gray   

Luster
Metallic   
Metallic   

Hardness
  
  

Mohs Hardness
5.50   
7
5.00   
8

Brinell Hardness
1,370.00 MPa   
7
470.00 MPa   
26

Vickers Hardness
1,400.00 MPa   
6
1,043.00 MPa   
11

Speed of Sound
5,400.00 m/s   
6
4,720.00 m/s   
14

Optical Properties
  
  

Reflectivity
58.00 %   
15
67.00 %   
11

Allotropes
No   
Yes   

α Allotropes
Not Available   
α-Cobalt   

β Allotropes
Not Available   
β-Cobalt   

γ Allotropes
Not Available   
Not Available   

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