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 isotopes2830283090283090Chapter 28Copy pageOtherDescriptionSulphides; polysulphides, whether or not chemically defined : OtherWas this page helpful?YesNoPrevious283010Sodium sulphidesNextOf sodium283110