Color: | colorless |
State at 25°C: | gas |
Density (g/cm3): | 0.0012 |
Hardness (Mohs): | No data |
Melting Point (K): | 63.34 |
Boiling Point (K): | 77.4 |
Heat of Fusion (kJ/mol): | 0.7 |
Heat of Vaporization (kJ/mol): | 6 |
Heat of Atomization (kJ/mol): | 473 |
Therm. Conductivity (J/m sec K): | 0.03 |
Elec. Conductivity (1/mohm cm): | 0 |
Abundance, Solar System: | 6.496 |
Abundance, Earth's Crust: | 1.3 |
Pure Cost ($/100g): | $ 0.40 |
Bulk Cost ($/100g): | |
Source: | Air |