Cerous selenate, Ce₂(SeO₄)₃

Cerous selenate, Ce₂(SeO₄)₃, and hydrates with 4, 5, 7, 8, 10, 11, and 12H₂O have been described by Cingolani, while Jolin has described hydrates with 6 and 9H₂O. The hydrates are less soluble in hot than in cold water. The following double salts have been prepared by Jolin: Ce₂(SeO₄)₃.5K₂SeO₄; Ce₂(SeO₄)₃.(NH₄)₂SeO₄.9H₂O; Ce₂(SeO₄)₃.Na₂SeO₄.5H₂O.