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 isotopes28312831Chapter 28Copy pageDithionites and sulphoxylatesDescriptionDithionites and sulphoxylatesSubheadings283110Of sodium283190OtherWas this page helpful?YesNoPrevious2830Sulphides; polysulphides, whether or not chemically definedNextSulphites; thiosulphates2832