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Physical Properties of Iridium and Tantalum

Iridium
Tantalum
Physical Properties of Tantalum and Iridium


Physical Properties
Melting Point
2,410.00 °C   
7
2,996.00 °C   
4
Boiling Point
4,527.00 °C   
10
5,425.00 °C   
4
Appearance
  
  
Physical State
Solid   
Solid   
Color
Silvery White   
Gray Blue   
Luster
Metallic   
Metallic   
Hardness
  
  
Mohs Hardness
6.50   
5
6.50   
5
Brinell Hardness
1,670.00 MPa   
5
440.00 MPa   
28
Vickers Hardness
1,760.00 MPa   
3
870.00 MPa   
12
Speed of Sound
4,825.00 m/s   
13
3,400.00 m/s   
22
Optical Properties
  
  
Reflectivity
78.00 %   
6
78.00 %   
6
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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