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 isotopes2833283319283319Chapter 28Copy pageOtherDescriptionSulphates; alums; peroxosulphates (persulphates) : Sodium sulphates : OtherWas this page helpful?YesNoPrevious283311Disodium sulphateNextOf magnesium283321