Rare earth metal hydrazine carboxylate hydrates

Rare Earth Metal Hydrazine Carboxylate Hydrates... [Pg.144]

When aqueous solutions of rare earth salts are treated with solutions of ammonium carbonate in hydrazine hydrate (N2H5COON2H3), rare earth metal hydrazine carboxylate hydrate complexes are formed [15]. Initially, a precipitate forms that dissolves with the addition of excess reagent. On keeping the solution for a couple of days crystalline solids separate. The crystals are washed with alcohol and then diethyl ether and stored in a vacuum desiccator. The composition of the crystals determined by chemical analysis and infrared spectra has been found to be Ln(N2H3C00)3-3H20 ... [Pg.144]