Gadolinium chloride, GdCl₃

Gadolinium chloride, GdCl₃, is a white, hygroscopic crystalline mass. It forms a hexahydrate, GdCl₃.6H₂O, of density 2.42. Gadolinium aurichloride, GdCl₃.AuCl₃.10H₂O, crystallises in yellow tables of specific gravity 2.71. Gadolinium platinichloride, GdCl₂.PtCl₄.10H₂O, forms orange-red crystals of density 2.72.