Physical Properties of Gold and Rhodium
Physical Properties
Melting Point
1,064.43 °C
99+
1,966.00 °C
12
Boiling Point
2,807.00 °C
36
3,727.00 °C
17
Appearance
Physical State
Solid
Solid
Color
Gold
Silvery White
Luster
Metallic
Metallic
Hardness
Mohs Hardness
2.50
14
6.00
6
Brinell Hardness
194.00 MPa
99+
980.00 MPa
9
Vickers Hardness
216.00 MPa
31
1,100.00 MPa
9
Speed of Sound
2,030.00 m/s
99+
4,700.00 m/s
15
Optical Properties
Reflectivity
95.00 %
2
84.00 %
4
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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