2846 Compounds, Inorganic or Organic, of Rare-earth Metals, of Yttrium or of Scandium or of Mixtures of These Metals

2846 (01/1988-..) Compounds, Inorganic or Organic, of Rare-earth Metals, of Yttrium or of Scandium or of Mixtures of These Metals 28461000 (01/1988-..) Cerium Compounds 28469000 (01/1988-12/2015) Compounds, Inorganic or Organic, of Rare-earth Metals, of Yttrium or of Scandium or of Mixtures of These Metals (Excl. Cerium) 28469010 (01/2016-..) Compounds of Lanthanum, Praseodymium, Neodymium or Samarium, Inorganic or Organic 28469020 (01/2016-..) Compounds of Europium, Gadolinium, Terbium, Dysprosium, Holmium, Erbium, Thulium, Ytterbium, Lutetium or Yttrium, Inorganic or Organic 28469030 (01/2016-..) Scandium Compounds, Inorganic or Organic 28469090 (01/2016-..) Compounds of Mixtures of Rare-earth Metals, Yttrium and Scandium, Inorganic or Organic