| Quantity | Value | Units | Value | Units |
| <Z/A> | 0.56437 | |||
| Specific gravity | 0.789 | g cm-3 | ||
| Minimum ionization | 2.054 | MeV g-1cm2 | 1.621 | MeV cm-1 |
| Nuclear collision length | 57.0 | g cm-2 | 72.25 | cm |
| Nuclear interaction length | 80.3 | g cm-2 | 101.7 | cm |
| Radiation length | 40.92 | g cm-2 | 51.84 | cm |
| Critical energy | 92.15 | MeV (for e-) | 89.73 | MeV (for e+) |
| Molière radius | 9.42 | g cm-2 | 11.93 | cm |
Plasma energy ![]() |
19.23 | eV | ||
| Muon critical energy | 1178. | GeV | ||
| Melting point | 159.0 | K | -114.1 | C |
| Boiling point @ 1 atm | 351.4 | K | 78.29 | C |
| Index of refraction (@ STP, Na D) | 1.36 |
| Elem | Z | Atomic frac* | Mass frac* |
| 1 | |||
| 6 | |||
| 8 | |||
| * calculated from mass fraction data. | |||