Section 06 Products of the chemical or allied Industries 28 Inorganic chemicals; organic or inorganic compounds of precious metals, of rare-earth metals, of radioactive elements or of isotopes 28 06 Hydrogen chloride (hydrochloric acid); chlorosulphuric acid Commodity Code Description 28 06 10 Hydrogen chloride (hydrochloric acid) 28 06 20 Chlorosulphuric acid