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Physical Properties of Tantalum and Niobium
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Tantalum
Niobium
Physical Properties of Niobium and Tantalum
Summary
Periodic Table
Facts
Uses
Physical
Chemical
Atomic
Mechanical
Magnetic
Thermal
All
Physical Properties
Melting Point
2,996.00 °C
4
2,468.00 °C
6
Boiling Point
5,425.00 °C
4
2,468.00 °C
99+
Appearance
Physical State
Solid
Solid
Color
Gray Blue
Gray
Luster
Metallic
Metallic
Hardness
Mohs Hardness
6.50
5
6.00
6
Brinell Hardness
440.00 MPa
28
735.00 MPa
14
Vickers Hardness
870.00 MPa
12
870.00 MPa
12
Speed of Sound
3,400.00 m/s
22
3,480.00 m/s
21
Optical Properties
Reflectivity
78.00 %
6
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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