Chapter 28 - Inorganic chemicals

Carbon (carbon blacks and other forms of carbon not elsewhere specified or included).

Hydrogen, rare gases and other non-metals.

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

Hydrogen chloride (hydrochloric acid); chlorosulphuric acid.

Sulphuric acid; oleum.

Nitric acid; sulphonitric acids.

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

Oxides of boron; boric acids.

Other inorganic acids and other inorganic oxygen compounds of non-metals.

Halides and halide oxides of non-metals.

Sulphides of non-metals; commercial phosphorus trisulphide.

Ammonia, anhydrous or in aqueous solution.

- Anhydrous ammonia

- Ammonia in aqueous solution

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

-- Solid

-- In aqueous solution (soda lye or liquid soda)

- Potassium hydroxide (caustic potash)

- Peroxides of sodium or potassium

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

Zinc oxide; zinc peroxide.

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

Chromium oxides and hydroxides.

Manganese oxides.

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

Cobalt oxides and hydroxides; commercial cobalt oxides.

Titanium oxides.

Lead oxides; red lead and orange lead.

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

Fluorides; fluorosilicates, fluoroaluminates and other complex fluorine salts.

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

Hypochlorites; commercial calcium hypochlorite; chlorites; hypobromites.

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

Sulphides; polysulphides, whether or not chemically defined.

Dithionites and sulphoxylates.

Sulphites; thiosulphates.

Sulphates; alums; peroxosulphates (persulphates).

Nitrites; nitrates.

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

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

Cyanides, cyanide oxides and complex cyanides.

Silicates; commercial alkali metal silicates.

Borates; peroxoborates (perborates).

-- Anhydrous

-- Other

- Other borates

- Peroxoborates (perborates)

Salts of oxometallic or peroxometallic acids.

Other salts of inorganic acids or peroxoacids (including aluminosilicates whether or not chemically defined), other than azides.

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

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

Isotopes other than those of heading 2844; compounds, inorganic or organic, of such isotopes, whether or not chemically defined.

- Heavy water (deuterium oxide)

- Other

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

Hydrogen peroxyde, whether or not solidified with urea.

Carbides, whether or not chemically defined.

Hydrides, nitrides, azides, silicides and borides, whether or not chemically defined, other than compounds which are also carbides of heading 2849.

Compounds, inorganic or organic, of mercury, excluding amalgams.

Phosphides, whether or not chemically defined, excluding ferrophosphorues; 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.

- Waste and scrap; spent (irradiated) fuel elements (cartridges) of nuclear reactors.

- Natural radioactive elements or compounds, other than goods of ex 2844(a)

- Enriched or depleted radioactive elements or compounds, and alloys, dispersions (including cermets), ceramic products and mixtures containing such elements or compounds, other than goods of ex2844(a)

- Other

Enriched or depleted isotopes other than those of heading 2844; compounds of such isotopes

Other