Dysprosium oxalate, Dy₂(C₂O₄)₃

Dysprosium oxalate, Dy₂(C₂O₄)₃.10H₂O, is precipitated as microscopic prisms, insoluble in water. One litre of normal sulphuric acid at 20° dissolves 1.893 grams of the oxalate (anhydrous). Dysprosium potassium oxalate, KDy(C₂O₄)₂.3H₂O, precipitated when solutions of dysprosium nitrate and potassium oxalate are mixed, is readily soluble in dilute acids.