About the sample | This is a commercial sample from one of our laboratories. In order to prevent reaction with the moisture from the air it is packed in an ampoule with an argon atmosphere. |
| Z | 19 |
| ρ / g/cm3 | 0.856 |
| tt, mp / °C | 63.38 |
| tv, bp / °C | 759 |
| Ar | 39.098 |
| Electronegativity, (X) | 0.82 |
| Crystal structure | Cubic |
| Extended information | https://www.webelements.com/potassium/ |