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 31 DITHIONITES AND SULPHOXYLATES. 28 31 90 OTHER DITHIONITES AND SULPHOXYLATES Commodity Code Description 28 31 90 00 OTHER DITHIONITES AND SULPHOXYLATES