[ta988]

You need an oxydizer whatever it is. Oxygen is only one oxidizer. Chlorine, fluorine and the other halogens are oxidizers too.

[08-15]

Fluoride (with a 'd') is not fluorine (with a 'n'). The difference is as big as that between sodium and sodium chloride. You can eat one, but not the other.

The most powerful oxidizer in MSR fuel salt is the U(IV) ion.

[andreareina]

IIRC fluorine is/can be a more potent oxidiser than oxygen.