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 isotopes28392839Chapter 28Copy pageSilicates; commercial alkali metal silicatesDescriptionSilicates; commercial alkali metal silicatesSubheadings283911Sodium metasilicates283919Other283990OtherWas this page helpful?YesNoPrevious2837Cyanides, cyanide oxides and complex cyanidesNextBorates; peroxoborates (perborates)2840