--- title: "Chapter 28 – Inorganic chemicals; organic or…: Canadian tariff" description: "Every HS heading in Chapter 28 (Inorganic chemicals; organic or inorganic compounds of precious metals, of rare-earth metals, of radioactive elements or…" canonical: "https://www.adhocs.ca/hs-codes/28" --- # Chapter 28 Inorganic chemicals; organic or inorganic compounds of precious metals, of rare-earth metals, of radioactive elements or of isotopes Up: [HS codes](https://www.adhocs.ca/hs-codes) Section VI · Products of the chemical or allied industries 50 headings. Each heading links to its page, which lists its subheadings, or to its only 10-digit code. - [2801](https://www.adhocs.ca/hs-codes/2801) Fluorine, chlorine, bromine and iodine. - [2802](https://www.adhocs.ca/hs-codes/2802) Sulphur, sublimed or precipitated; colloidal sulphur. - [2803](https://www.adhocs.ca/hs-codes/2803) Carbon (carbon blacks and other forms of carbon not elsewhere specified or included). - [2804](https://www.adhocs.ca/hs-codes/2804) Hydrogen, rare gases and other non-metals. - [2805](https://www.adhocs.ca/hs-codes/2805) Alkali or alkaline-earth metals; rare-earth metals, scandium and yttrium, whether or not intermixed or interalloyed; mercury. - [2806](https://www.adhocs.ca/hs-codes/2806) Hydrogen chloride (hydrochloric acid); chlorosulphuric acid. - [2807](https://www.adhocs.ca/hs-codes/2807) Sulphuric acid; oleum. - [2808](https://www.adhocs.ca/hs-codes/2808) Nitric acid; sulphonitric acids. - [2809](https://www.adhocs.ca/hs-codes/2809) Diphosphorus pentaoxide; phosphoric acid; polyphosphoric acids, whether or not chemically defined. - [2810](https://www.adhocs.ca/hs-codes/2810) Oxides of boron; boric acids. - [2811](https://www.adhocs.ca/hs-codes/2811) Other inorganic acids and other inorganic oxygen compounds of non-metals. - [2812](https://www.adhocs.ca/hs-codes/2812) Halides and halide oxides of non-metals. - [2813](https://www.adhocs.ca/hs-codes/2813) Sulphides of non-metals; commercial phosphorus trisulphide. - [2814](https://www.adhocs.ca/hs-codes/2814) Ammonia, anhydrous or in aqueous solution. - [2815](https://www.adhocs.ca/hs-codes/2815) Sodium hydroxide (caustic soda); potassium hydroxide (caustic potash); peroxides of sodium or potassium. - [2816](https://www.adhocs.ca/hs-codes/2816) Hydroxide and peroxide of magnesium; oxides, hydroxides and peroxides, of strontium or barium. - [2817](https://www.adhocs.ca/hs-codes/2817) Zinc oxide; zinc peroxide. - [2818](https://www.adhocs.ca/hs-codes/2818) Artificial corundum, whether or not chemically defined; aluminum oxide; aluminum hydroxide. - [2819](https://www.adhocs.ca/hs-codes/2819) Chromium oxides and hydroxides. - [2820](https://www.adhocs.ca/hs-codes/2820) Manganese oxides. - [2821](https://www.adhocs.ca/hs-codes/2821) Iron oxides and hydroxides; earth colours containing 70% or more by weight of combined iron evaluated as Fe2O3. - [2822](https://www.adhocs.ca/hs-codes/2822) Cobalt oxides and hydroxides; commercial cobalt oxides. - [2823](https://www.adhocs.ca/hs-codes/2823) Titanium oxides. - [2824](https://www.adhocs.ca/hs-codes/2824) Lead oxides; red lead and orange lead. - [2825](https://www.adhocs.ca/hs-codes/2825) Hydrazine and hydroxylamine and their inorganic salts; other inorganic bases; other metal oxides, hydroxides and peroxides. - [2826](https://www.adhocs.ca/hs-codes/2826) Fluorides; fluorosilicates, fluoroaluminates and other complex fluorine salts. - [2827](https://www.adhocs.ca/hs-codes/2827) Chlorides, chloride oxides and chloride hydroxides; bromides and bromide oxides; iodides and iodide oxides. - [2828](https://www.adhocs.ca/hs-codes/2828) Hypochlorites; commercial calcium hypochlorite; chlorites; hypobromites. - [2829](https://www.adhocs.ca/hs-codes/2829) Chlorates and perchlorates; bromates and perbromates; iodates and periodates. - [2830](https://www.adhocs.ca/hs-codes/2830) Sulphides; polysulphides, whether or not chemically defined. - [2831](https://www.adhocs.ca/hs-codes/2831) Dithionites and sulphoxylates. - [2832](https://www.adhocs.ca/hs-codes/2832) Sulphites; thiosulphates. - [2833](https://www.adhocs.ca/hs-codes/2833) Sulphates; alums; peroxosulphates (persulphates). - [2834](https://www.adhocs.ca/hs-codes/2834) Nitrites; nitrates. - [2835](https://www.adhocs.ca/hs-codes/2835) Phosphinates (hypophosphites), phosphonates (phosphites) and phosphates; polyphosphates, whether or not chemically defined. - [2836](https://www.adhocs.ca/hs-codes/2836) Carbonates; peroxocarbonates (percarbonates); commercial ammonium carbonate containing ammonium carbamate. - [2837](https://www.adhocs.ca/hs-codes/2837) Cyanides, cyanide oxides and complex cyanides. - [2839](https://www.adhocs.ca/hs-codes/2839) Silicates; commercial alkali metal silicates. - [2840](https://www.adhocs.ca/hs-codes/2840) Borates; peroxoborates (perborates). - [2841](https://www.adhocs.ca/hs-codes/2841) Salts of oxometallic or peroxometallic acids. - [2842](https://www.adhocs.ca/hs-codes/2842) Other salts of inorganic acids or peroxoacids (including aluminosilicates whether or not chemically defined), other than azides. - [2843](https://www.adhocs.ca/hs-codes/2843) Colloidal precious metals; inorganic or organic compounds of precious metals, whether or not chemically defined; amalgams of precious metals. - [2844](https://www.adhocs.ca/hs-codes/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](https://www.adhocs.ca/hs-codes/2845) Isotopes other than those of heading 28.44; compounds, inorganic or organic, of such isotopes, whether or not chemically defined. - [2846](https://www.adhocs.ca/hs-codes/2846) Compounds, inorganic or organic, of rare-earth metals, of yttrium or of scandium or of mixtures of these metals. - [2847](https://www.adhocs.ca/hs-codes/2847) Hydrogen peroxide, whether or not solidified with urea. - [2849](https://www.adhocs.ca/hs-codes/2849) Carbides, whether or not chemically defined. - [2850](https://www.adhocs.ca/hs-codes/2850) Hydrides, nitrides, azides, silicides and borides, whether or not chemically defined, other than compounds which are also carbides of heading 28.49. - [2852](https://www.adhocs.ca/hs-codes/2852) Inorganic or organic compounds of mercury, whether or not chemically defined, excluding amalgams. - [2853](https://www.adhocs.ca/hs-codes/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. ## Other chapters - Previous: [Chapter 27](https://www.adhocs.ca/hs-codes/27) Mineral fuels, mineral oils and products of their distillation; bituminous substances; mineral waxes - Next: [Chapter 29](https://www.adhocs.ca/hs-codes/29) Organic chemicals [Source: CBSA Customs Tariff](https://www.cbsa-asfc.gc.ca/trade-commerce/tariff-tarif/menu-eng.html).