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Fluorine, clorine, bromine and iodine

Sulphur, sublimed or precipitated; colloidal sulphur

Carbon "carbon blacks and other forms of carbon" n.e.s.

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 and polyphosphoric acids

Oxides of boron; boric acids

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, oxid

Halides and halide oxides of non-metals

Sulphides of non-metals; commercial phosphorus trisulphide

Ammonia, anhydrous or in aqueous solution

Sodium hydroxide "caustic 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% 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; inorganic bases, metal oxides, hydroxides and peroxides, n.e.s.

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

Dithionites and sulfoxylates

Sulphites; thiosulphates

Sulphates; alums; peroxosulphates "persulphates"

Nitrites; nitrates

Phosphinates "hypophosphites", phosphonates "phosphites", phosphates and polyphosphates

Carbonates; peroxocarbonates "percarbonates"; commercial ammonium carbonate containing ammonium carbamate

Cyanides, oxycyanides and complex cyanides

Fulminates, cyanates and thiocyanates

Silicates; commercial alkali metal silicates

Borates; peroxoborates "perborates"

Salts of oxometallic or peroxometallic acids

Salts of inorganic acids or peroxoacids (excl. of oxometallic or peroxometallic acids and 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, incl. their fissile or fertile chemical elements and isotopes, and their compounds; mixtures and residues containing these products

Nonradioactive isotopes; inorganic or organic compounds of such isotopes, whether or not chemically defined

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

Hydrogen peroxide, whether or not solidified with urea

Phosphides, whether or not chemically defined (excl. ferrophosphorus)

Carbides, whether or not chemically defined

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

Inorganic compounds, incl. distilled or conductivity water and water of similar purity n.e.s.; liquid air, whether or not rare gases have been removed; compressed air; amalgams, other than amalgams of precious metals