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Physical Properties of Potassium and Gallium

Potassium
Gallium
Physical Properties of Gallium and Potassium


Physical Properties
Melting Point
63.65 °C   
99+
29.78 °C   
99+
Boiling Point
774.00 °C   
99+
2,403.00 °C   
99+
Appearance
  
  
Physical State
Solid   
Solid   
Color
Silvery Gray   
Silvery White   
Luster
NA   
Metallic   
Hardness
  
  
Mohs Hardness
0.40   
23
1.50   
18
Brinell Hardness
0.36 MPa   
99+
56.80 MPa   
99+
Speed of Sound
2,000.00 m/s   
99+
2,740.00 m/s   
31
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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