Section 06 PRODUCTS OF THE CHEMICAL OR ALLIED INDUSTRIES 28 INORGANIC CHEMICALS; ORGANIC OR INORGANIC COMPOUNDS OF PRECIOUS METAL, OFRARE-EARTH METALS, OF RADIOACTIVE ELEMENTS OR OF ISOTOPES 28 52 COMPOUNDS, INORGANIC OR ORGANIC, OF MERCURY, EXCLUDING AMALGAMS. 28 52 90 OTH INORGANIC OR ORGANIC COMPOUNDS OF MERCURY, NOT CHEMICALLY DEFINED, EXCL AMALGAMS Commodity Code Description 28 52 90 00 OTH INORGANIC OR ORGANIC COMPOUNDS OF MERCURY, NOT CHEMICALLY DEFINED, EXCL AMALGAMS