Physical Properties of Thorium and Niobium
Physical Properties
Melting Point
1,750.00 °C
17
2,468.00 °C
6
Boiling Point
4,790.00 °C
8
2,468.00 °C
99+
Appearance
Physical State
Solid
Solid
Color
Silver
Gray
Luster
NA
Metallic
Hardness
Mohs Hardness
3.00
12
6.00
6
Brinell Hardness
390.00 MPa
29
735.00 MPa
14
Vickers Hardness
295.00 MPa
29
870.00 MPa
12
Speed of Sound
2,490.00 m/s
36
3,480.00 m/s
21
Optical Properties
Allotropes
No
No
α Allotropes
Not Available
Not Available
β Allotropes
Not Available
Not Available
γ Allotropes
Not Available
Not Available
|
||
|
||
|
