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Physical Properties of Cobalt and Promethium


Physical Properties of Promethium and Cobalt


Physical Properties

Melting Point
1,495.00 °C   
29
1,042.00 °C   
99+

Boiling Point
2,870.00 °C   
34
3,000.00 °C   
31

Appearance
  
  

Physical State
Solid   
Solid   

Color
Gray   
Unknown   

Luster
Metallic   
Metallic   

Hardness
  
  

Mohs Hardness
5.00   
8
Not Available   

Brinell Hardness
470.00 MPa   
26
Not Available   

Vickers Hardness
1,043.00 MPa   
11
Not Available   

Speed of Sound
4,720.00 m/s   
14
Not Available   

Optical Properties
  
  

Reflectivity
67.00 %   
11
Not Available   

Allotropes
Yes   
No   

α Allotropes
α-Cobalt   
Not Available   

β Allotropes
β-Cobalt   
Not Available   

γ Allotropes
Not Available   
Not Available   

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