Maybe they found a way to mix it into an eutectic mixture? The article doesnt say much on the specific chemistry of the liquid salt. https://en.m.wikipedia.org/

Maybe they found a way to mix it into an eutectic mixture? The article doesnt say much on the specific chemistry of the liquid salt. https://en.m.wikipedia.org/wiki/Eutectic_system https://en.m.wikipedia.org/wiki/Eutectic_system