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Physical Properties of Thulium and Praseodymium


Physical Properties of Praseodymium and Thulium


Physical Properties

Melting Point
1,545.00 °C   
23
935.00 °C   
99+

Boiling Point
1,730.00 °C   
99+
3,130.00 °C   
27

Appearance
  
  

Physical State
Solid   
Solid   

Color
Silvery Gray   
Grayish White   

Luster
Metallic   
Metallic   

Hardness
  
  

Brinell Hardness
471.00 MPa   
25
481.00 MPa   
24

Vickers Hardness
520.00 MPa   
21
400.00 MPa   
25

Speed of Sound
Not Available   
2,280.00 m/s   
40

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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