Physical Properties of Rhodium and Platinum
Melting Point
1,966.00 °C
  
12
1,772.00 °C
  
16
Boiling Point
3,727.00 °C
  
17
3,827.00 °C
  
15
Appearance
  
  
Physical State
Solid
  
Solid
  
Color
Silvery White
  
Silvery White
  
Luster
Metallic
  
Metallic
  
Hardness
  
  
Vickers Hardness
1,100.00 MPa
  
9
Speed of Sound
4,700.00 m/s
  
15
2,800.00 m/s
  
29
Optical Properties
  
  
Allotropes
No
  
No
  
α Allotropes
Not Available
  
Not Available
  
β Allotropes
Not Available
  
Not Available
  
γ Allotropes
Not Available
  
Not Available