28Chapter
Inorganic chemicals; organic and inorganic compounds of precious metals; of rare earth metals, of radio-active elements and of isotopes
Section VI — Products of the chemical or allied industries
| Code | Description |
|---|---|
| 28.01 | Fluorine, chlorine, bromine and iodine |
| 28.02 | Sulphur; sublimed or precipitated, colloidal sulphur |
| 28.03 | Carbon; carbon blacks and other forms of carbon n.e.c. |
| 28.04 | Hydrogen, rare gases and other non-metals |
| 28.05 | Alkali or alkaline-earth metals; rare-earth metals, scandium and yttrium, whether or not intermixed or interalloyed; mercury |
| 28.06 | Hydrogen chloride (hydrochloric acid); chlorosulphuric acid |
| 28.07 | Sulphuric acid; oleum |
| 28.08 | Nitric acid; sulphonitric acids |
| 28.09 | Diphosphorus pentaoxide; phosphoric acid; polyphosphoric acids, whether or not chemically defined |
| 28.10 | Oxides of boron; boric acids |
| 28.11 | Inorganic acids and other inorganic oxygen compounds of non-metals; n.e.c. in heading no. 2806 to 2810 |
| 28.12 | Halides and halide oxides of non-metals |
| 28.13 | Sulphides of non-metals; commercial phosphorus trisulphide |
| 28.14 | Ammonia; anhydrous or in aqueous solution |
| 28.15 | Sodium hydroxide (caustic soda); potassium hydroxide (caustic potash) peroxides of sodium or potassium |
| 28.16 | Hydroxide and peroxide of magnesium; oxides, hydroxides and peroxides of strontium or barium |
| 28.17 | Zinc; oxide and peroxide |
| 28.18 | Aluminium oxide (including artificial corundum); aluminium hydroxide |
| 28.19 | Chromium oxides and hydroxides |
| 28.20 | Manganese oxides |
| 28.21 | Iron oxides and hydroxides; earth colours containing 70% or more by weight of combined iron evaluated as Fe2o3 |
| 28.22 | Cobalt oxides and hydroxides; commercial cobalt oxides |
| 28.23 | Titanium oxides |
| 28.24 | Lead oxides; red lead and orange lead |
| 28.25 | Hydrazine and hydroxylamine and their inorganic salts; other inorganic bases; other metal oxides, hydroxides and peroxides |
| 28.26 | Fluorides; fluorosilicates, fluoroaluminates and other complex fluorine salts |
| 28.27 | Chlorides; chloride oxides and chloride hydroxides; bromides and bromide oxides; iodides and iodide oxides |
| 28.28 | Hypochlorites; commercial calcium hypochlorite; chlorites; hypobromites |
| 28.29 | Chlorates and perchlorates; bromates and perbromates; iodates and periodates |
| 28.30 | Sulphides; polysulphides whether or not chemically defined |
| 28.31 | Dithionites and sulphoxylates |
| 28.32 | Sulphites; thiosulphates |
| 28.33 | Sulphates; alums; peroxosulphates (persulphates) |
| 28.34 | Nitrites; nitrates |
| 28.35 | Phosphinates (hypophosphites), phosphonates (phosphites), and phosphates; and polyphosphates, whether or not chemically defined |
| 28.36 | Carbonates; peroxocarbonates (percarbonates); commercial ammonium carbonate containing ammonium carbamate |
| 28.37 | Cyanides, cyanide oxides and complex cyanides |
| 28.39 | Silicates; commercial alkali metal silicates |
| 28.40 | Borates; peroxoborates (perborates) |
| 28.41 | Salts of oxometallic or peroxometallic acids |
| 28.42 | Salts of inorganic acids or peroxoacids, n.e.c. including aluminosilicates whether or not chemically defined, but excluding azides |
| 28.43 | Colloidal precious metals; inorganic or organic compounds of precious metals, whether or not chemically defined; amalgams of precious metals |
| 28.44 | Radioactive chemical elements and radioactive isotopes (including the fissile or fertile chemical elements and isotopes); and their compounds; mixtures and residues containing these products |
| 28.45 | Isotopes other than those of heading no. 2844; compounds, inorganic or organic, of such isotopes, whether or not chemically defined |
| 28.46 | Compounds, inorganic or organic, of rare-earth metals; of yttrium or of scandium or of mixtures of these metals |
| 28.47 | Hydrogen peroxide; whether or not solidified with urea |
| 28.49 | Carbides, whether or not chemically defined |
| 28.50 | Hydrides, nitrides, azides, silicides and borides, whether or not chemically defined, other than compounds which are also carbides of heading no. 2849 |
| 28.52 | Inorganic or organic compounds of mercury, excluding amalgams, whether or not chemically defined |
| 28.53 | Phosphides, chemically defined or not, not ferrophosphorus; other inorganic compounds n.e.c. (including distilled, conductivity water and water of like purity); liquid air, rare gases removed or not; compressed air; amalgams, not precious metal amalgams |