28Chapter
28 — Inorganic chemicals; organic or inorganic compounds of precious metals, of rare-earth metals, of radioactive elements or of isotopes
Hóa chất vô cơ; các hợp chất vô cơ hoặc hữu cơ của kim loại quý, kim loại đất hiếm, các nguyên tố phóng xạ hoặc các chất đồng vị
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Codes under heading 28
›SUB-CHAPTER I — CHEMICAL ELEMENTS (5)
- 2801 Fluorine, chlorine, bromine and iodine
- 28020000 Sulphur, sublimed or precipitated; colloidal sulphur
- 2803 Carbon (carbon blacks and other forms of carbon not elsewhere specified or included)
- 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
›SUB-CHAPTER II — INORGANIC ACIDS AND INORGANIC OXYGEN COMPOUNDS OF NON-METALS (6)
- 2806 Hydrogen chloride (hydrochloric acid); chlorosulphuric acid
- 2807 Sulphuric acid; oleum
- 28080000 Nitric acid; sulphonitric acids.
- 2809 Diphosphorous pentaoxide; phosphoric acid; polyphosphoric acids, whether or not chemically defined
- 2810 Oxides of boron; boric acids
- 2811 Other inorganic acids and other inorganic oxygen compounds of non-metals
›SUB-CHAPTER III — HALOGEN OR SULPHUR COMPOUNDS OF NON-METALS (2)
›SUB-CHAPTER IV — INORGANIC BASES AND OXIDES, HYDROXIDES AND PEROXIDES OF METAL (28)
- 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
- 2817 Zinc oxide; zinc peroxide
- 2818 Artificial corundum, whether or not chemically defined; aluminium oxide; aluminium hydroxide
- 2819 Chromium oxides and hydroxides
- 2820 Manganese oxides
- 2821 Iron oxides and hydroxides; earth colours containing 70% or more by weight of combined iron evaluated as Fe2O3
- 28220000 Cobalt oxides and hydroxides; commercial cobalt oxides
- 28230000 Titanium oxides
- 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
- 2828 Hypochlorites; commercial calcium hypochlorite; chlorites; hypobromites
- 2829 Chlorates and perchlorates; bromates and perbromates; iodates and periodates
- 2830 Sulphides; polysulphides, whether or not chemically defined
- 2831 Dithionites and sulphoxylates
- 2832 Sulphites; thiosulphates
- 2833 Sulphates; alums; peroxosulphates (persulphates)
- 2834 Nitrites; nitrates
- 2835 Phosphinates (hypophosphites), phosphonates (phosphites) and phosphates; polyphosphates, whether or not chemically defined
- 2836 Carbonates; peroxocarbonates (percarbonates); commercial ammonium carbonate containing ammonium carbamate
- 2837 Cyanides, cyanide oxides and complex cyanides
- 2839 Silicates; commercial alkali metal silicates
- 2840 Borates; peroxoborates (perborates)
- 2841 Salts of oxometallic or peroxometallic acids
- 2842 Other salts of inorganic acids or peroxoacids (including aluminosilicates whether or not chemically defined), other than azides
›SUB-CHAPTER VI — MISCELLANEOUS (9)
- 2843 Colloidal precious metals; inorganic or organic compounds of precious metals, whether or not chemically defined; amalgams of precious metals
- 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
- 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
- 2847 Hydrogen peroxide, whether or not solidified with urea.
- 2849 Carbides, whether or not chemically defined
- 28500000 Hydrides, nitrides, azides, silicides and borides, whether or not chemically defined, other than compounds which are also carbides of heading 28.49
- 2852 Inorganic or organic compounds of mercury, whether or not chemically defined, excluding amalgams
- 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
Data updated: 11/08/2026 · Found wrong or missing data? Report a data error