Physical Properties of Mercury and Cobalt
Melting Point
Not Available
  
1,495.00 °C
  
29
Boiling Point
2,870.00 °C
  
34
Appearance
  
  
Physical State
Liquid
  
Solid
  
Color
Silver
  
Gray
  
Luster
NA
  
Metallic
  
Hardness
  
  
Mohs Hardness
Not Available
  
Brinell Hardness
Not Available
  
Vickers Hardness
Not Available
  
1,043.00 MPa
  
11
Speed of Sound
1,451.40 m/s
  
99+
4,720.00 m/s
  
14
Optical Properties
  
  
Refractive Index
Not Available
  
Allotropes
No
  
Yes
  
α Allotropes
Not Available
  
α-Cobalt
  
β Allotropes
Not Available
  
β-Cobalt
  
γ Allotropes
Not Available
  
Not Available