Neptunium(IV) oxalate
Neptunium oxalate is an inorganic compound, a salt of neptunium and oxalic acid with the chemical formula Np. The compound is slightly soluble in water, forms crystalline hydrates—green crystals.
Synthesis
Neptunium oxalate is formed by the oxalic acid precipitation of neptunium solutions:Physical properties
Neptunium oxalate forms a crystalline hydrate of the composition with green crystals.It is insoluble in acetone, and slightly soluble in water.