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 52 Inorganic or organic compounds of mercury, whether or not chemically defined, excluding amalgams 28 52 10 - Chemically defined 28 52 10 00 - Chemically defined Commodity Code Description 28 52 10 00 000 - Chemically defined
