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Physical Properties of Thallium and Rhenium


Physical Properties of Rhenium and Thallium


Physical Properties

Melting Point
303.50 °C   
99+
3,180.00 °C   
2

Boiling Point
1,457.00 °C   
99+
5,627.00 °C   
2

Appearance
  
  

Physical State
Solid   
Solid   

Color
Silvery White   
Silvery Gray   

Luster
NA   
Metallic   

Hardness
  
  

Mohs Hardness
1.20   
20
7.00   
3

Brinell Hardness
26.50 MPa   
99+
1,320.00 MPa   
8

Vickers Hardness
Not Available   
1,350.00 MPa   
7

Speed of Sound
818.00 m/s   
99+
4,700.00 m/s   
15

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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