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 isotopes28152815Chapter 28Copy pageSodium hydroxide (caustic soda); potassium hydroxide (caustic potash); peroxides of sodium or potassiumDescriptionSodium hydroxide (caustic soda); potassium hydroxide (caustic potash); peroxides of sodium or potassiumSubheadings281511Solid281512In aqueous solution (soda lye or liquid soda)281520Potassium hydroxide (caustic potash)281530Peroxides of sodium or potassiumWas this page helpful?YesNoPrevious2814Ammonia, anhydrous or in aqueous solutionNextHydroxide and peroxide of magnesium; oxides, hydroxides and peroxides, of strontium or barium2816