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 isotopes2836283650283650Chapter 28Copy pageCalcium carbonateDescriptionCarbonates; peroxocarbonates (percarbonates); commercial ammonium carbonate containing ammonium carbamate : Calcium carbonateWas this page helpful?YesNoPrevious283640Potassium carbonatesNextBarium carbonate283660