3D model (JSmol)
|Molar mass||351 g·mol−1|
|Melting point||54.4 °C (129.9 °F; 327.5 K)|
|Boiling point||55.18 °C (131.32 °F; 328.33 K)|
|Pnma, No. 62|
Except where otherwise noted, data are given for materials in their standard state (at 25 °C [77 °F], 100 kPa).
|what is ?)(|
Neptunium hexafluoride (NpF6) is the highest fluoride of neptunium, it is also one of seventeen known binary hexafluorides. It is an orange volatile crystalline solid. It is relatively hard to handle, being very corrosive, volatile and radioactive.
At normal pressure , it melts at 54.4 ° C and boils at 55.18 ° C. It is the only neptunium compound that is easily converted into the gas phase. Due to these properties, it is possible to separate neptunium from spent fuel . This quickly increased the interest in his presentation and in the exact examination of its properties.