Physical Properties of Platinum and Thorium
Physical Properties
Melting Point
1,772.00 °C
16
1,750.00 °C
17
Boiling Point
3,827.00 °C
15
4,790.00 °C
8
Appearance
Physical State
Solid
Solid
Color
Silvery White
Silver
Luster
Metallic
NA
Hardness
Mohs Hardness
3.50
11
3.00
12
Brinell Hardness
300.00 MPa
34
390.00 MPa
29
Vickers Hardness
400.00 MPa
25
295.00 MPa
29
Speed of Sound
2,800.00 m/s
29
2,490.00 m/s
36
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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