@Argh
I found ammonia as a refined product but not as a large deposit.
Salt + Fungal Mould.
(Apparently Parafinium + Ferite Dust works too)
Haven’t come across “ammonium”? Is it maybe another refined product?
@jedidia
My uranuim was acquired from traders at trading posts in systems with a radioactive planet as I could not find deposits occurring naturally.
Edit: added extra formular.