Dysprosium carbonate, Dy₂(CO₃)₃

Dysprosium carbonate, Dy₂(CO₃)₃.4H₂O, an insoluble powder formed by treating an aqueous suspension of dysprosium hydroxide with a current of carbon dioxide, loses 3H₂O at ordinary temperatures. In contact with saturated aqueous ammonium carbonate, it is slowly converted into sparingly soluble, crystalline dysprosium ammonium carbonate, (NH₄)₃Dy(CO₃)₃.H₂O, which begins to lose ammonia at 60°.