| Quantity | Value | Units | Value | Units |
| <Z/A> | 0.57778 | |||
| Specific gravity | 0.703 | g cm-3 | ||
| Minimum ionization | 2.123 | MeV g-1cm2 | 1.492 | MeV cm-1 |
| Nuclear collision length | 55.8 | g cm-2 | 79.44 | cm |
| Nuclear interaction length | 77.8 | g cm-2 | 110.7 | cm |
| Radiation length | 45.00 | g cm-2 | 64.05 | cm |
| Critical energy | 104.65 | MeV (for e-) | 101.94 | MeV (for e+) |
| Molière radius | 9.12 | g cm-2 | 12.98 | cm |
Plasma energy ![]() |
18.36 | eV | ||
| Muon critical energy | 1312. | GeV | ||
| Melting point | 214.4 | K | -58.70 | C |
| Boiling point @ 1 atm | 398.8 | K | 125.6 | C |
| Elem | Z | Atomic frac* | Mass frac* |
| 1 | |||
| 6 | |||
| * calculated from mass fraction data. | |||