Color: white
State at 25°C: solid
Density (g/cm3): 5.5
Hardness (Mohs): No data
Melting Point (K): 973.2
Boiling Point (K): 1973
Heat of Fusion (kJ/mol): 8.5
Heat of Vaporization (kJ/mol): 113
Heat of Atomization (kJ/mol): 159
Therm. Conductivity (J/m sec K): 18.6
Elec. Conductivity (1/mohm cm): No data
Abundance, Solar System: No data
Abundance, Earth's Crust: -6
Pure Cost ($/100g):  
Bulk Cost ($/100g):  
Source: pitchblende (U-238 decay)