Physical Properties of Platinum and Niobium
Physical Properties
Melting Point
1,772.00 °C
16
2,468.00 °C
6
Boiling Point
3,827.00 °C
15
2,468.00 °C
99+
Appearance
Physical State
Solid
Solid
Color
Silvery White
Gray
Luster
Metallic
Metallic
Hardness
Mohs Hardness
3.50
11
6.00
6
Brinell Hardness
300.00 MPa
34
735.00 MPa
14
Vickers Hardness
400.00 MPa
25
870.00 MPa
12
Speed of Sound
2,800.00 m/s
29
3,480.00 m/s
21
Optical Properties
Reflectivity
73.00 %
8
Not Available
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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