| Quantity | Value | Units | Value | Units |
| <Z/A> | 0.46262 | |||
| Density | 2.63 | g cm-3 | ||
| Minimum ionization | 1.614 | MeV g-1cm2 | 4.253 | MeV cm-1 |
| Nuclear collision length | 61.0 | g cm-2 | 23.13 | cm |
| Nuclear interaction length | 88.7 | g cm-2 | 33.68 | cm |
| Pion collision length | 87.5 | g cm-2 | 33.21 | cm |
| Pion interaction length | 119.8 | g cm-2 | 45.46 | cm |
| Radiation length | 39.26 | g cm-2 | 14.90 | cm |
| Critical energy | 68.82 | MeV (for e-) | 66.93 | MeV (for e+) |
| Molière radius | 12.09 | g cm-2 | 4.590 | cm |
Plasma energy ![]() |
31.82 | eV | ||
| Muon critical energy | 904. | GeV | ||
| Melting point | 1121. | K | 848.2 | C |
| Boiling point @ 1 atm | 1946. | K | 1673. | C |
| Index of refraction (@ STP, Na D) | 1.39 |
| Elem | Z | Atomic frac* | Mass frac* |
| 3 | |||
| 9 | |||
| * calculated from mass fraction data. | |||