Physical Properties of Barium and Beryllium
Melting Point
1,278.00 °C
  
36
Boiling Point
1,140.00 °C
  
99+
2,970.00 °C
  
32
Appearance
  
  
Physical State
Solid
  
Solid
  
Color
Silvery Gray
  
White Gray
  
Luster
NA
  
Metallic
  
Hardness
  
  
Brinell Hardness
Not Available
  
Vickers Hardness
Not Available
  
1,670.00 MPa
  
4
Speed of Sound
1,620.00 m/s
  
99+
12,890.00 m/s
  
2
Optical Properties
  
  
Allotropes
No
  
No
  
α Allotropes
Not Available
  
Not Available
  
β Allotropes
Not Available
  
Not Available
  
γ Allotropes
Not Available
  
Not Available