Sulphates; alums; peroxosulphates (persulphates).

2801 Fluorine, chlorine, bromine and iodine.

2804 Hydrogen, rare gases and other non-metals.

2805 Alkali or alkaline-earth metals; rare-earth metals, scandium and yttrium, whether or not intermixed or interalloyed; mercury.

2806 Hydrogen chloride (hydrochloric acid); chlorosulphuric acid.

2809 Diphosphorus pentaoxide; phosphoric acid; polyphosphoric acids, whether or not chemically defined.

2811 Inorganic acids and other inorganic oxygen compounds of non-metals; n.e.c. in heading no. 2806 to 2810, other inorganic acids and other inorganic oxygen compounds of non-metals.

2812 Halides and halide oxides of non-metals.

2813 Sulphides of non-metals; commercial phosphorus trisulphide.

2814 Ammonia, anhydrous or in aqueous solution.

2815 Sodium hydroxide (caustic soda); potassium hydroxide (caustic potash); peroxides of sodium or potassium.

2816 Hydroxide and peroxide of magnesium; oxides, hydroxides and peroxides, of strontium or barium.

2818 Artificial corundum, whether or not chemically defined; aluminum oxide; aluminum hydroxide.

2819 Chromium oxides and hydroxides.

2820 Manganese oxides, manganese oxides.

2821 Iron oxides and hydroxides; earth colours containing 70% or more by weight of combined iron evaluated as Fe2O3.

2845 Isotopes other than those of heading 28.44; compounds, inorganic or organic, of such isotopes, whether or not chemically defined.

2846 Compounds, inorganic or organic, of rare-earth metals, of yttrium or of scandium or of mixtures of these metals.

2849 Carbides, whether or not chemically defined.

2852 Inorganic or organic compounds of mercury, whether or not chemically defined, excluding amalgams.

2824 Lead oxides; red lead and orange lead.

2825 Hydrazine and hydroxylamine and their inorganic salts; other inorganic bases; other metal oxides, hydroxides and peroxides.

2826 Fluorides; fluorosilicates, fluoroaluminates and other complex fluorine salts.

2827 Chlorides, chloride oxides and chloride hydroxides; bromides and bromide oxides; iodides and iodide oxides.

2831 Dithionites and sulphoxylates.

2832 Sulphites; thiosulphates.

2833 Sulphates; alums; peroxosulphates (persulphates).

2834 Nitrites; nitrates, nitrites; nitrates.

2836 Carbonates; peroxocarbonates (percarbonates); commercial ammonium carbonate containing ammonium carbamate.

2840 Borates; peroxoborates (perborates).

2829 Chlorates and perchlorates; bromates and perbromates; iodates and periodates.

2830 Sulphides; polysulphides, whether or not chemically defined.

2835 Phosphinates (hypophosphites), phosphonates (phosphites) and phosphates; polyphosphates, whether or not chemically defined.

2837 Cyanides, cyanide oxides and complex cyanides.

2839 Silicates; commercial alkali metal silicates.

2841 Salts of oxometallic or peroxometallic acids.

2844 Radioactive chemical elements and radioactive isotopes (including the fissile or fertile chemical elements and isotopes) and their compounds; mixtures and residues containing these products.

2842 Salts of inorganic acids or peroxoacids, n.e.c. including aluminosilicates whether or not chemically defined, but excluding azides, other salts of inorganic acids or peroxoacids (including aluminosilicates whether or not chemically defined), other than azides.

2843 Colloidal precious metals; inorganic or organic compounds of precious metals, whether or not chemically defined; amalgams of precious metals.

2853 Phosphides, whether or not chemically defined, excluding ferrophosphorus; other inorganic compounds (including distilled or conductivity water and water of similar purity); liquid air (whether or not rare gases have been removed); compressed air; amalgams, other than amalgams of precious metals.

2828 Hypochlorites; commercial calcium hypochlorite; chlorites; hypobromites.