Barium Uranate, BaUO₄

Barium Uranate, BaUO₄, is formed by fusing together barium chloride and urano-uranic oxide, or by mixing solutions of barium chloride and uranyl chloride and passing in excess of ammonia. The reaction in the latter case proceeds according to the equation:

UO₂Cl₂ + BaCl₂ + 4NH₃ + 2H₂O = BaUO₄ + 4NH₄Cl.

It yields yellow glistening crystals, insoluble in water, but readily soluble in dilute hydrochloric acid.