/sci/ - Science & Math

>>3033009
Judging from your third answer, you don't even know what fission products are.
They are the elements that are produced by the Fission reaction.
They are a big happy family reunion of the periodic table, you'll literally have like 30 different elements in your salt, all with widely different chemical properties. Getting them out of your salt will be easy to near impossible, and getting them ALL out selectively will require several complicated chemical separation steps.
That some of them get out really easily is the second problem
As soon as you have a leak anywhere, Caesium, Iodine, Technetium, and all Noble gases, which make a pretty big chunk of the fission products will say goodbye to the salt and start to roam the place freely. All those Elements have extremely high mobility, especially at the elevated temperatures of the salt.
THAT is the centrally problem of any non-solid fuel, any leak will always result in a major release of fission products, even minor ones.
A solid state fuel, as long as it isn't melting down, will only release Nobel gases to the Primary loop.
This is a tremendous fucking security risk, a simple broken pipe will inevitably lead to a shutdown of the plant for months, as a best-case scenario.