Categories

CN2850

28 Inorganic Chemicals, Organic or Inorganic Compounds of Precious Metals, of Rare-earth Metals, of Radioactive Elements or of Isotopes

2850 (01/1988-..) Hydrides, Nitrides, Azides, Silicides and Borides, Whether or not Chemically Defined (Excl. Compounds Which are Also Carbides of Heading 2849) [01/01/1988-31/12/1991: Hydrides, Nitrides, Azides, Silicides and Borides, Whether or not Chemically Defined]

28500010 (01/1988-12/1997) Hydrides, Whether or not Chemically Defined, (Excl. Compounds Which are Also Carbides of Heading 2849)

28500020 (01/2012-..) Hydrides and Nitrides, Whether or not Chemically Defined (Excl. Compounds Which are Also Carbides of Heading 2849, and Inorganic or Organic Compounds of Mercury)

28500030 (01/1988-12/1997) Nitrides, Whether or not Chemically Defined, (Excl. Compounds Which are Also Carbides of Heading 2849)

28500050 (01/1988-12/2008) Azides, Whether or not Chemically Defined (Excl. Compounds Which are Also Carbides of Heading 2849)

28500060 (01/2012-..) Azides, Silicides, Whether or not Chemically Defined (Excl. Compounds Which are Also Carbides of Heading 2849, and Inorganic or Organic Compounds of Mercury)

28500070 (01/1988-12/2008) Silicides, Whether or not Chemically Defined (Excl. Compounds Which are Also Carbides of Heading 2849)

28500090 (01/2012-..) Borides, Whether or not Chemically Defined (Excl. Compounds Which are Also Carbides of Heading 2849, and Inorganic or Organic Compounds of Mercury)