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Neodymium(III) sulphate is a salt of the rare earth metal neodymium with sulfuric acid. It forms as octahydrate violet-red crystals.
N 2125 (OTTO) Neodymium sulphate, octahydrate, 99.9% Cas 13477-91-3 - used as catalyst, glass, crystal and capacitors, in CRT displays to enhance contrast between reds and greens.