CN2811

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

2811 (01/1988-..) Inorganic Acids and Inorganic Oxygen Compounds of Non-metals (Excl. Hydrogen Chloride ‘hydrochloric Acid’, Chlorosulphuric Acid, Sulphuric Acid, Oleum, Nitric Acid, Sulphonitric Acids, Diphosphorus Pentaoxide, Phosphoric Acid, Polyphosphoric Acids, OxideS of Boron and Boric Acids)

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28111100 (01/1988-..) Hydrogen Fluoride ‘hydrofluoric Acid’

28111900 (01/1988-12/1994) Inorganic Acids (Excl. Hydrogen Chloride ‘hydrochloric Acid’, Chlorosulphuric Acid, Sulphuric Acid, Oleum, Nitric Acid, Sulphonitric Acids, Phosphoric Acid, Polyphosphoric Acids, Boric Acids and Hydrogen Fluoride ‘hydrofluoric Acid’)

28111910 (01/1995-..) Hydrogen Bromide ‘hydrobromic Acid’

28111920 (01/1998-..) Hydrogen Cyanide ‘hydrocyanic Acid’

28111980 (01/1998-..) Inorganic Acids (Excl. Hydrogen Chloride ‘hydrochloric Acid’, Chlorosulphuric Acid, Sulphuric Acid, Oleum, Nitric Acid, Sulphonitric Acids, Phosphoric Acid, Polyphosphoric Acids, Boric Acids, Hydrogen Fluoride ‘hydrofluoric Acid’, Hydrogen Bromide HydrobRomic Acid’ and Hydrogen Cyanide ‘hydrocyanic Acid’)

28111990 (01/1995-12/1997) Inorganic Acids (Excl. Hydrogen Chloride ‘hydrochloric Acid’, Chlorosulphuric Acid, Sulphuric Acid, Oleum, Nitric Acid, Sulphonitric Acids, Phosphoric Acid, Polyphosphoric Acids, Boric Acids, Hydrogen Fluoride ‘hydrofluoric Acid’ and Hydrobromic Acid)

28112100 (01/1988-..) Carbon Dioxide

28112200 (01/1988-..) Silicon Dioxide

28112300 (01/1988-12/2006) Sulphur Dioxide

28112905 (01/2007-..) Sulphur Dioxide

28112910 (01/1988-..) Sulphur Trioxide ‘sulphuric Anhydride, Diarsenic Trioxide

28112930 (01/1988-..) Nitrogen Oxides

28112990 (01/1988-..) Inorganic Oxygen Compounds of Non-metals (Excl. Diphosphorus Pentaoxide, Oxides of Boron, Carbon Dioxide, Silicon Dioxide, Sulphur Dioxide, Sulphur Trioxide ‘sulphuric Anhydride’, Diarsenic Trioxide and Nitrogen Oxides)