HS Chapter 28 – Chapter 28 - Inorganic Chemicals; Organic or Inorganic Compounds of Precious Metals, of Rare-Earth Metals, of Radioactive Elements or of Isotopes
Tariff data as of T2026-2, effective Sept 1, 2026, last verified Oct 21, 2026
Inorganic Chemicals; Organic or Inorganic Compounds of Precious Metals, of Rare-Earth Metals, of Radioactive Elements or of Isotopes
Headings in Chapter 28
- 2801 – Fluorine, chlorine, bromine and iodine.
- 2802 – 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.
- 2806 – Hydrogen chloride (hydrochloric acid); chlorosulphuric acid.
- 2807 – Sulphuric acid; oleum
- 2808 – Nitric acid; sulphonitric acids
- 2809 – Diphosphorus 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.
- 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.
- 2817 – Zinc oxide; zinc peroxide
- 2818 – Artificial corundum, whether or not chemically defined; aluminum oxide; aluminum 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.
- 2822 – Cobalt oxides and hydroxides; commercial cobalt oxides
- 2823 – 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.
- 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.
- 2850 – Hydrides, nitrides, azides, silicides and borides, whether or not chemically defined
- 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.