Color: colorless
State at 25°C: gas
Density (g/cm3): 0.0059
Hardness (Mohs): No data
Melting Point (K): 161.3
Boiling Point (K): 165
Heat of Fusion (kJ/mol): 3.1
Heat of Vaporization (kJ/mol): 12.7
Heat of Atomization (kJ/mol): 0
Therm. Conductivity (J/m sec K): 0.01
Elec. Conductivity (1/mohm cm): 0
Abundance, Solar System: 0.672
Abundance, Earth's Crust: -4.5
Pure Cost ($/100g): $ 120.00
Bulk Cost ($/100g):  
Source: Air