Samarium(III) oxalate

Samarium oxalate is an inorganic compound, a salt of samarium and oxalic acid with the formula Sm₂₃. The compound does not dissolve in water, forms a crystalline hydrate with yellow crystals.

Synthesis

Precipitation of soluble samarium salts with oxalic acid:
Also a reaction of samarium nitrate and oxalic acid in an aqueous solution:

Physical properties

Samarium oxalate forms a crystalline hydrate of the composition Sm₂₃ • 10H₂O with yellow crystals.

Chemical properties

Decomposes on heating:
Crystalline hydrate Sm₂₃ • 10H₂O decomposes stepwise.