Physical Properties of Cobalt and Tin
Physical Properties
Melting Point
1,495.00 °C
29
231.90 °C
99+
Boiling Point
2,870.00 °C
34
2,270.00 °C
99+
Appearance
Physical State
Solid
Solid
Color
Gray
Silvery White
Luster
Metallic
NA
Hardness
Mohs Hardness
5.00
8
1.50
18
Brinell Hardness
470.00 MPa
26
50.00 MPa
99+
Vickers Hardness
1,043.00 MPa
11
Not Available
Speed of Sound
4,720.00 m/s
14
2,730.00 m/s
32
Optical Properties
Reflectivity
67.00 %
11
Not Available
Allotropes
Yes
Yes
α Allotropes
α-Cobalt
Grey Tin (alpha Tin, Tin Pest)
β Allotropes
β-Cobalt
White Tin (Beta Tin)
γ Allotropes
Not Available
Rhombic Tin (gamma Tin)
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