Now no uses for sodium, well it should use to produce fertilizer(nitratin, or sodium nitrate).
However, since no meaning as just it, I suggest that relevants.
There are new gus: nitric acid and ammonia, farming machines, another way to make gunpowder and farming/lumber robits.
It's not interesting no way to use sodium.

Sodium does need a use, that's for sure. Thanks for the suggestions