Section 06 PRODUCTS OF THE CHEMICAL OR ALLIED INDUSTRIES 28 Inorganic chemicals; organic or inorganic compounds of precious metals , of rare 28 43 Colloidal precious metals; inorganic or organic compounds of precious metals, wh 28 43 10 28 43 10 00 Commodity Code Description 28 43 10 00 00 - Colloidal precious metals 28 43 21 00 00 -- Silver nitrate 28 43 29 00 00 -- Other 28 43 30 00 00 - Gold compounds 28 43 90 00 00 - Other compounds; amalgams