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 isotopes28082808Chapter 28Copy pageNitric acid; sulphonitric acidsDescriptionNitric acid; sulphonitric acidsSubheadings280800Nitric acid; sulphonitric acidsWas this page helpful?YesNoPrevious2807Sulphuric acid; oleumNextDiphosphorus pentaoxide; phosphoric acid; polyphosphoric acids, whether or not chemically defined2809