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Physical Properties of Rhodium and Cobalt


Physical Properties of Cobalt and Rhodium


Physical Properties

Melting Point
1,966.00 °C   
12
1,495.00 °C   
29

Boiling Point
3,727.00 °C   
17
2,870.00 °C   
34

Appearance
  
  

Physical State
Solid   
Solid   

Color
Silvery White   
Gray   

Luster
Metallic   
Metallic   

Hardness
  
  

Mohs Hardness
6.00   
6
5.00   
8

Brinell Hardness
980.00 MPa   
9
470.00 MPa   
26

Vickers Hardness
1,100.00 MPa   
9
1,043.00 MPa   
11

Speed of Sound
4,700.00 m/s   
15
4,720.00 m/s   
14

Optical Properties
  
  

Reflectivity
84.00 %   
4
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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