Section 06 Products of the chemical or allied 28 Inorganic chemicals; organic or inorganic compounds of precious metals, of rare earth metals, of radioactive elements or isotopes 28 11 Other inorganic acids and other inorganic oxygen compounds of non-metals 28 11 19 Other inorganic acids, nes Commodity Code Description 28 11 19 00 Other inorganic acids, nes 28 11 19 10 Arsenic acid 28 11 19 20 Aminosulphonic acid (sulphamic acid) 28 11 19 90 Other