polyuranate

…is typically precipitated as a polyuranate. From acidic solutions, uranium is precipitated by addition of neutralizers such as sodium hydroxide, magnesia, or (most commonly) aqueous ammonia. Uranium is usually precipitated as ammonium diuranate, (NH₄)₂U₂O₇. From alkaline solutions, uranium is most often precipitated by addition of sodium hydroxide, producing an insoluble…