Neptunium(III) fluoride

Neptunium(III) fluoride or neptunium trifluoride is a salt of neptunium and fluorine with the formula NpF₃.

Synthesis

Neptunium(III) fluoride can be prepared by reacting neptunium dioxide with a gas mixture of hydrogen and hydrogen fluoride at 500 °C:

$\mathrm{2}\mathrm{N}\mathrm{p}{\mathrm{O}}_{\mathrm{2}}\mathrm{+}{\mathrm{H}}_{\mathrm{2}}\mathrm{+}\mathrm{6}\mathrm{H}\mathrm{F}\mathrm{⟶}\mathrm{2}\mathrm{N}\mathrm{p}{\mathrm{F}}_{\mathrm{3}}\mathrm{+}\mathrm{4}{\mathrm{H}}_{\mathrm{2}}\mathrm{O}$