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Physical Properties of Iridium and Rhenium

Iridium
Rhenium
Physical Properties of Rhenium and Iridium


Physical Properties
Melting Point
2,410.00 °C   
7
3,180.00 °C   
2
Boiling Point
4,527.00 °C   
10
5,627.00 °C   
2
Appearance
  
  
Physical State
Solid   
Solid   
Color
Silvery White   
Silvery Gray   
Luster
Metallic   
Metallic   
Hardness
  
  
Mohs Hardness
6.50   
5
7.00   
3
Brinell Hardness
1,670.00 MPa   
5
1,320.00 MPa   
8
Vickers Hardness
1,760.00 MPa   
3
1,350.00 MPa   
7
Speed of Sound
4,825.00 m/s   
13
4,700.00 m/s   
15
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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