Synthesis of DF (Deuterium FLuoride)

[jman1990]

Hello All,

I am wondering if anyone knows a good synthesis for DF. I am trying to create a deuterated crystal for neutron diffraction studies (it is a hydrated crystal). The synthesis involves water and HF. I can buy D2O for the synthesis, but DF in D2O is a problem.

If anyone can enlighten me on good precursors for DF I would appreciate it.
FYI I work with HF regularly and am aware of it's hazards and safe handling practices.

P.S. I know the standard synthesis for HF involves reaction of fluorite with sulfuric acid, however I obviously don't have D2SO4 either.

Thanks,

 

[DrDu]

How about BaF2+D2O+CrO3 -> BaCrO4 +2HF?

 

[jman1990]

This could work, thanks.

I found that D2SO4 isn't much more expensive than D2O so I probably will end up buying some and using that to react CaF2 to form DF + CaSO4. I am going to try this method as well and see which gives me better results.