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Physical Properties of Uranium and Niobium

Uranium
Niobium
Physical Properties of Niobium and Uranium


Physical Properties
Melting Point
1,132.00 °C   
39
2,468.00 °C   
6
Boiling Point
3,818.00 °C   
16
2,468.00 °C   
99+
Appearance
  
  
Physical State
Solid   
Solid   
Color
Silvery Gray   
Gray   
Luster
Metallic   
Metallic   
Hardness
  
  
Mohs Hardness
6.00   
6
6.00   
6
Brinell Hardness
2,350.00 MPa   
2
735.00 MPa   
14
Vickers Hardness
1,960.00 MPa   
2
870.00 MPa   
12
Speed of Sound
3,155.00 m/s   
25
3,480.00 m/s   
21
Optical Properties
  
  
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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