HS CodesVI · Products of the chemical or allied industries28 · Inorganic chemicals; organic or inorganic compounds of precious metals, of rare-earth metals, of radioactive elements or of isotopes28192819Chapter 28Copy pageChromium oxides and hydroxidesDescriptionChromium oxides and hydroxidesSubheadings281910Chromium trioxide281990OtherWas this page helpful?YesNoPrevious2818Artificial corundum, whether or not chemically defined; aluminium oxide; aluminium hydroxideNextManganese oxides2820