Explanatory notes
… (lanthanum, cerium, praseodymium, neodymium, samarium, europium, gadolinium, terbium, dysprosium, holmium, erbium, … heading will not therefore, for example, cover a mixture of europium and samarium nitrates with the oxalates nor a … in water, is obtained from cerium nitrate; it is used as an opacifier in ceramics, for colouring glass, in the …