Harmonized System
Section VI > Chapter 28 > Heading 2846
Explanatory notes
… heading also covers compounds derived directly by chemical treatment from mixtures of the elements. This means that the heading will include mixtures of oxides or hydroxides of these elements or mixtures of salts having … heading include : (1) Cerium compounds . (a) Oxides and hydroxides . Ceric oxide, a white powder insoluble in water, …Section III > Chapter 15 > Heading 1522
… Degras; residues resulting from the treatment of fatty substances or animal or vegetable waxes. …