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Physical Properties of Iridium and Hafnium


Physical Properties of Hafnium and Iridium


Physical Properties

Melting Point
2,410.00 °C   
7
2,150.00 °C   
10

Boiling Point
4,527.00 °C   
10
5,400.00 °C   
5

Appearance
  
  

Physical State
Solid   
Solid   

Color
Silvery White   
Gray   

Luster
Metallic   
Metallic   

Hardness
  
  

Mohs Hardness
6.50   
5
5.50   
7

Brinell Hardness
1,670.00 MPa   
5
1,450.00 MPa   
6

Vickers Hardness
1,760.00 MPa   
3
1,520.00 MPa   
5

Speed of Sound
4,825.00 m/s   
13
3,010.00 m/s   
27

Optical Properties
  
  

Reflectivity
78.00 %   
6
Not Available   

Allotropes
No   
No   

α Allotropes
Not Available   
Not Available   

β Allotropes
Not Available   
Not Available   

γ Allotropes
Not Available   
Not Available   

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