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Physical Properties of Protactinium and Iron


Physical Properties of Iron and Protactinium


Physical Properties

Melting Point
1,568.00 °C   
21
1,535.00 °C   
25

Boiling Point
4,027.00 °C   
12
2,750.00 °C   
37

Appearance
  
  

Physical State
Solid   
Solid   

Color
Silver   
Gray   

Luster
Metallic   
Metallic   

Hardness
  
  

Mohs Hardness
Not Available   
4.00   
10

Brinell Hardness
Not Available   
200.00 MPa   
40

Vickers Hardness
Not Available   
608.00 MPa   
18

Speed of Sound
Not Available   
5,120.00 m/s   
8

Optical Properties
  
  

Reflectivity
Not Available   
65.00 %   
12

Allotropes
No   
Yes   

α Allotropes
Not Available   
Ferrite (alpha Iron)   

β Allotropes
Not Available   
beta Iron   

γ Allotropes
Not Available   
gamma Iron   

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