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Physical Properties of Osmium and Cobalt


Physical Properties of Cobalt and Osmium


Physical Properties

Melting Point
3,045.00 °C   
3
1,495.00 °C   
29

Boiling Point
5,027.00 °C   
6
2,870.00 °C   
34

Appearance
  
  

Physical State
Solid   
Solid   

Color
Silvery Bluish-Gray   
Gray   

Luster
Metallic   
Metallic   

Hardness
  
  

Mohs Hardness
7.00   
3
5.00   
8

Brinell Hardness
3,490.00 MPa   
1
470.00 MPa   
26

Vickers Hardness
Not Available   
1,043.00 MPa   
11

Speed of Sound
4,940.00 m/s   
11
4,720.00 m/s   
14

Optical Properties
  
  

Reflectivity
Not Available   
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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