Color: | colorless |
State at 25°C: | gas |
Density (g/cm3): | 0.0014 |
Hardness (Mohs): | No data |
Melting Point (K): | 54.8 |
Boiling Point (K): | 90.2 |
Heat of Fusion (kJ/mol): | 0.4 |
Heat of Vaporization (kJ/mol): | No data |
Heat of Atomization (kJ/mol): | 249 |
Therm. Conductivity (J/m sec K): | 0.03 |
Elec. Conductivity (1/mohm cm): | 0 |
Abundance, Solar System: | 7.377 |
Abundance, Earth's Crust: | 5.7 |
Pure Cost ($/100g): | $ 0.30 |
Bulk Cost ($/100g): | |
Source: | Air |