Section 06 PRODUCTS OF THE CHEMICAL OR ALLIED 28 Inorganic chemicals;organic or inorganic compounds of precious metals, ofrare-earth, of radioactive elements or of isotopes 28 16 HYDROXIDE AND PEROXIDE OF MAGNESIUM; OXIDES... OF STRONTIUM OR BARIUM Commodity Code Description 28 16 10 Hydroxide and peroxide of magnesium 28 16 40 Oxides, hydroxides and peroxides, of strontium or barium