Chapter 28 - Inorganic chemicals
226 tariff codes in this chapter, across 50 headings
Browse by heading
Each heading groups its 10-digit tariff items.
- 28013 itemsFluorine, chlorine, bromine and iodine. - Chlorine
- 28021 itemsSulphur, sublimed or precipitated; colloidal sulphur.
- 28033 itemsCarbon (carbon blacks and other forms of carbon not elsewhere specified or included).
- 280413 itemsHydrogen, rare gases and other non-metals. - Arsenic
- 28055 itemsAlkali or alkaline-earth metals; rare-earth metals, scandium and yttrium, whether or not intermixed or interalloyed; mercury. - Alkali or alkaline-earth metals: - Calcium
- 28062 itemsHydrogen chloride (hydrochloric acid); chlorosulphuric acid. - Chlorosulphuric acid
- 28071 itemsSulphuric acid; oleum.
- 28081 itemsNitric acid; sulphonitric acids.
- 28096 itemsDiphosphorus pentaoxide; phosphoric acid; polyphosphoric acids, whether or not chemically defined. - Diphosphorus pentaoxide
- 28101 itemsOxides of boron; boric acids.
- 28119 itemsOther inorganic acids and other inorganic oxygen compounds of non-metals. - Other inorganic acids: - Hydrogen cyanide (hydrocyanic acid)
- 281211 itemsHalides and halide oxides of non-metals. - Chlorides and chloride oxides: - Carbonyl dichloride (phosgene)
- 28132 itemsSulphides of non-metals; commercial phosphorus trisulphide. - Carbon disulphide
- 28142 itemsAmmonia, anhydrous or in aqueous solution. - Ammonia in aqueous solution
- 28156 itemsSodium hydroxide (caustic soda); potassium hydroxide (caustic potash); peroxides of sodium or potassium. - Peroxides of sodium or potassium
- 28162 itemsHydroxide and peroxide of magnesium; oxides, hydroxides and peroxides, of strontium or barium. - Hydroxide and peroxide of magnesium
- 28173 itemsZinc oxide; zinc peroxide.
- 28186 itemsArtificial corundum, whether or not chemically defined; aluminum oxide; aluminum hydroxide. - Aluminum hydroxide
- 28192 itemsChromium oxides and hydroxides. - Chromium trioxide
- 28202 itemsManganese oxides. - Manganese dioxide
- 28212 itemsIron oxides and hydroxides; earth colours containing 70% or more by weight of combined iron evaluated as Fe2O3. - Earth colours
- 28221 itemsCobalt oxides and hydroxides; commercial cobalt oxides.
- 28233 itemsTitanium oxides.
- 28242 itemsLead oxides; red lead and orange lead. - Lead monoxide (litharge, massicot)
- 282511 itemsHydrazine and hydroxylamine and their inorganic salts; other inorganic bases; other metal oxides, hydroxides and peroxides. - Antimony oxides
- 28264 itemsFluorides; fluorosilicates, fluoroaluminates and other complex fluorine salts. - Fluorides: - Of aluminum
- 282713 itemsChlorides, chloride oxides and chloride hydroxides; bromides and bromide oxides; iodides and iodide oxides. - Ammonium chloride
- 28282 itemsHypochlorites; commercial calcium hypochlorite; chlorites; hypobromites. - Commercial calcium hypochlorite and other calcium hypochlorites
- 28293 itemsChlorates and perchlorates; bromates and perbromates; iodates and periodates. - Chlorates: - Of sodium
- 28302 itemsSulphides; polysulphides, whether or not chemically defined. - Other
- 28312 itemsDithionites and sulphoxylates. - Of sodium
- 28323 itemsSulphites; thiosulphates. - Other sulphites
- 283316 itemsSulphates; alums; peroxosulphates (persulphates). - Alums
- 28343 itemsNitrites; nitrates. - Nitrates: - Of potassium
- 283512 itemsPhosphinates (hypophosphites), phosphonates (phosphites) and phosphates; polyphosphates, whether or not chemically defined. - Phosphates: - Calcium hydrogenorthophosphate ("dicalcium phosphate")
- 283610 itemsCarbonates; peroxocarbonates (percarbonates); commercial ammonium carbonate containing ammonium carbamate. - Barium carbonate
- 28373 itemsCyanides, cyanide oxides and complex cyanides. - Complex cyanides
- 28393 itemsSilicates; commercial alkali metal silicates. - Of sodium: - Other
- 28404 itemsBorates; peroxoborates (perborates). - Disodium tetraborate (refined borax): - Anhydrous
- 28417 itemsSalts of oxometallic or peroxometallic acids. - Manganites, manganates and permanganates: - Other
- 28422 itemsOther salts of inorganic acids or peroxoacids (including aluminosilicates whether or not chemically defined), other than azides. - Double or complex silicates, including aluminosilicates whether or not chemically defined
- 28435 itemsColloidal precious metals; inorganic or organic compounds of precious metals, whether or not chemically defined; amalgams of precious metals. - Colloidal precious metals
- 284411 itemsRadioactive chemical elements and radioactive isotopes (including the fissile or fertile chemical elements and isotopes) and their compounds; mixtures and residues containing these products. - Natural uranium and its compounds; alloys, dispersions (including cermets), ceramic products and mixtures containing natural uranium or natural uranium compounds
- 28455 itemsIsotopes other than those of heading 28.44; compounds, inorganic or organic, of such isotopes, whether or not chemically defined. - Boron enriched in boron-10 and its compounds
- 28462 itemsCompounds, inorganic or organic, of rare-earth metals, of yttrium or of scandium or of mixtures of these metals. - Cerium compounds
- 28473 itemsHydrogen peroxide, whether or not solidified with urea.
- 28495 itemsCarbides, whether or not chemically defined. - Of calcium
- 28501 itemsHydrides, nitrides, azides, silicides and borides, whether or not chemically defined, other than compounds which are also carbides of heading 28.49.
- 28523 itemsInorganic or organic compounds of mercury, whether or not chemically defined, excluding amalgams. - Chemically defined
- 28532 itemsPhosphides, 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. - Cyanogen chloride (chlorcyan)
| HS Code | Description | MFN Rate |
|---|---|---|
| 2801.10.00.00 | Fluorine, chlorine, bromine and iodine. - Chlorine | Free |
| 2801.20.00.00 | Fluorine, chlorine, bromine and iodine. - Iodine | Free |
| 2801.30.00.00 | Fluorine, chlorine, bromine and iodine. - Fluorine; bromine | Free |
| 2802.00.00.00 | Sulphur, sublimed or precipitated; colloidal sulphur. | Free |
| 2803.00.00 | Carbon (carbon blacks and other forms of carbon not elsewhere specified or included). | Free |
| 2803.00.00.10 | Carbon (carbon blacks and other forms of carbon not elsewhere specified or included). - Lampblack | Free |
| 2803.00.00.90 | Carbon (carbon blacks and other forms of carbon not elsewhere specified or included). - Other | Free |
| 2804.10.00.00 | Hydrogen, rare gases and other non-metals. - Hydrogen | Free |
| 2804.21.00.00 | Hydrogen, rare gases and other non-metals. - Rare gases: - Argon | Free |
| 2804.29.00 | Hydrogen, rare gases and other non-metals. - Rare gases: - Other | Free |
| 2804.29.00.10 | Hydrogen, rare gases and other non-metals. - Rare gases: - Other - Helium | Free |
| 2804.29.00.90 | Hydrogen, rare gases and other non-metals. - Rare gases: - Other - Other | Free |
| 2804.30.00.00 | Hydrogen, rare gases and other non-metals. - Nitrogen | Free |
| 2804.40.00.00 | Hydrogen, rare gases and other non-metals. - Oxygen | Free |
| 2804.50.00.00 | Hydrogen, rare gases and other non-metals. - Boron; tellurium | Free |
| 2804.61.00.00 | Hydrogen, rare gases and other non-metals. - Silicon: - Containing by weight not less than 99.99% of silicon | Free |
| 2804.69.00.00 | Hydrogen, rare gases and other non-metals. - Silicon: - Other | Free |
| 2804.70.00.00 | Hydrogen, rare gases and other non-metals. - Phosphorus | Free |
| 2804.80.00.00 | Hydrogen, rare gases and other non-metals. - Arsenic | Free |
| 2804.90.00.00 | Hydrogen, rare gases and other non-metals. - Selenium | Free |
| 2805.11.00.00 | Alkali or alkaline-earth metals; rare-earth metals, scandium and yttrium, whether or not intermixed or interalloyed; mercury. - Alkali or alkaline-earth metals: - Sodium | Free |
| 2805.12.00.00 | Alkali or alkaline-earth metals; rare-earth metals, scandium and yttrium, whether or not intermixed or interalloyed; mercury. - Alkali or alkaline-earth metals: - Calcium | Free |
| 2805.19.00.00 | Alkali or alkaline-earth metals; rare-earth metals, scandium and yttrium, whether or not intermixed or interalloyed; mercury. - Alkali or alkaline-earth metals: - Other | Free |
| 2805.30.00.00 | Alkali or alkaline-earth metals; rare-earth metals, scandium and yttrium, whether or not intermixed or interalloyed; mercury. - Rare-earth metals, scandium and yttrium, whether or not intermixed or interalloyed | Free |
| 2805.40.00.00 | Alkali or alkaline-earth metals; rare-earth metals, scandium and yttrium, whether or not intermixed or interalloyed; mercury. - Mercury | Free |
| 2806.10.00.00 | Hydrogen chloride (hydrochloric acid); chlorosulphuric acid. - Hydrogen chloride (hydrochloric acid) | Free |
| 2806.20.00.00 | Hydrogen chloride (hydrochloric acid); chlorosulphuric acid. - Chlorosulphuric acid | Free |
| 2807.00.00.00 | Sulphuric acid; oleum. | Free |
| 2808.00.00.00 | Nitric acid; sulphonitric acids. | Free |
| 2809.10.00.00 | Diphosphorus pentaoxide; phosphoric acid; polyphosphoric acids, whether or not chemically defined. - Diphosphorus pentaoxide | Free |
| 2809.20.00 | Diphosphorus pentaoxide; phosphoric acid; polyphosphoric acids, whether or not chemically defined. - Phosphoric acid and polyphosphoric acids | Free |
| 2809.20.00.11 | Diphosphorus pentaoxide; phosphoric acid; polyphosphoric acids, whether or not chemically defined. - Phosphoric acid and polyphosphoric acids - Phosphoric acids, fertilizer grade: - Superacid grade (68-72% P2O5) | Free |
| 2809.20.00.19 | Diphosphorus pentaoxide; phosphoric acid; polyphosphoric acids, whether or not chemically defined. - Phosphoric acid and polyphosphoric acids - Phosphoric acids, fertilizer grade: - Other | Free |
| 2809.20.00.20 | Diphosphorus pentaoxide; phosphoric acid; polyphosphoric acids, whether or not chemically defined. - Phosphoric acid and polyphosphoric acids - Other phosphoric acids | Free |
| 2809.20.00.30 | Diphosphorus pentaoxide; phosphoric acid; polyphosphoric acids, whether or not chemically defined. - Phosphoric acid and polyphosphoric acids - Polyphosphoric acids | Free |
| 2810.00.00.00 | Oxides of boron; boric acids. | Free |
| 2811.11.00.00 | Other inorganic acids and other inorganic oxygen compounds of non-metals. - Other inorganic acids: - Hydrogen fluoride (hydrofluoric acid) | Free |
| 2811.12.00.00 | Other inorganic acids and other inorganic oxygen compounds of non-metals. - Other inorganic acids: - Hydrogen cyanide (hydrocyanic acid) | Free |
| 2811.19.00.00 | Other inorganic acids and other inorganic oxygen compounds of non-metals. - Other inorganic acids: - Other | Free |
| 2811.21.00.00 | Other inorganic acids and other inorganic oxygen compounds of non-metals. - Other inorganic oxygen compounds of non-metals: - Carbon dioxide | Free |
| 2811.22.00 | Other inorganic acids and other inorganic oxygen compounds of non-metals. - Other inorganic oxygen compounds of non-metals: - Silicon dioxide | Free |
| 2811.22.00.10 | Other inorganic acids and other inorganic oxygen compounds of non-metals. - Other inorganic oxygen compounds of non-metals: - Silicon dioxide - Hydrated silica | Free |
| 2811.22.00.20 | Other inorganic acids and other inorganic oxygen compounds of non-metals. - Other inorganic oxygen compounds of non-metals: - Silicon dioxide - Silica gel | Free |
| 2811.22.00.90 | Other inorganic acids and other inorganic oxygen compounds of non-metals. - Other inorganic oxygen compounds of non-metals: - Silicon dioxide - Other | Free |
| 2811.29.00.00 | Other inorganic acids and other inorganic oxygen compounds of non-metals. - Other inorganic oxygen compounds of non-metals: - Other | Free |
| 2812.11.00.00 | Halides and halide oxides of non-metals. - Chlorides and chloride oxides: - Carbonyl dichloride (phosgene) | Free |
| 2812.12.00.00 | Halides and halide oxides of non-metals. - Chlorides and chloride oxides: - Phosphorus oxychloride | Free |
| 2812.13.00.00 | Halides and halide oxides of non-metals. - Chlorides and chloride oxides: - Phosphorus trichloride | Free |
| 2812.14.00.00 | Halides and halide oxides of non-metals. - Chlorides and chloride oxides: - Phosphorus pentachloride | Free |
| 2812.15.00.00 | Halides and halide oxides of non-metals. - Chlorides and chloride oxides: - Sulphur monochloride | Free |
| 2812.16.00.00 | Halides and halide oxides of non-metals. - Chlorides and chloride oxides: - Sulphur dichloride | Free |
| 2812.17.00.00 | Halides and halide oxides of non-metals. - Chlorides and chloride oxides: - Thionyl chloride | Free |
| 2812.19.00 | Halides and halide oxides of non-metals. - Chlorides and chloride oxides: - Other | Free |
| 2812.19.00.10 | Halides and halide oxides of non-metals. - Chlorides and chloride oxides: - Other - Arsenic trichloride | Free |
| 2812.19.00.90 | Halides and halide oxides of non-metals. - Chlorides and chloride oxides: - Other - Other | Free |
| 2812.90.00.00 | Halides and halide oxides of non-metals. - Other | Free |
| 2813.10.00.00 | Sulphides of non-metals; commercial phosphorus trisulphide. - Carbon disulphide | Free |
| 2813.90.00.00 | Sulphides of non-metals; commercial phosphorus trisulphide. - Other | Free |
| 2814.10.00.00 | Ammonia, anhydrous or in aqueous solution. - Anhydrous ammonia | Free |
| 2814.20.00.00 | Ammonia, anhydrous or in aqueous solution. - Ammonia in aqueous solution | Free |
| 2815.11.00.00 | Sodium hydroxide (caustic soda); potassium hydroxide (caustic potash); peroxides of sodium or potassium. - Sodium hydroxide (caustic soda): - Solid | Free |
| 2815.12.00.00 | Sodium hydroxide (caustic soda); potassium hydroxide (caustic potash); peroxides of sodium or potassium. - Sodium hydroxide (caustic soda): - In aqueous solution (soda lye or liquid soda) | Free |
| 2815.20.00 | Sodium hydroxide (caustic soda); potassium hydroxide (caustic potash); peroxides of sodium or potassium. - Potassium hydroxide (caustic potash) | Free |
| 2815.20.00.10 | Sodium hydroxide (caustic soda); potassium hydroxide (caustic potash); peroxides of sodium or potassium. - Potassium hydroxide (caustic potash) - Solid | Free |
| 2815.20.00.20 | Sodium hydroxide (caustic soda); potassium hydroxide (caustic potash); peroxides of sodium or potassium. - Potassium hydroxide (caustic potash) - In aqueous solution | Free |
| 2815.30.00.00 | Sodium hydroxide (caustic soda); potassium hydroxide (caustic potash); peroxides of sodium or potassium. - Peroxides of sodium or potassium | Free |
| 2816.10.00.00 | Hydroxide and peroxide of magnesium; oxides, hydroxides and peroxides, of strontium or barium. - Hydroxide and peroxide of magnesium | Free |
| 2816.40.00.00 | Hydroxide and peroxide of magnesium; oxides, hydroxides and peroxides, of strontium or barium. - Oxides, hydroxides and peroxides, of strontium or barium | Free |
| 2817.00.00 | Zinc oxide; zinc peroxide. | Free |
| 2817.00.00.10 | Zinc oxide; zinc peroxide. - Zinc oxide, having a zinc content not exceeding 75%, expressed as the metal, for use in the manufacture of animal or poultry feeds | Free |
| 2817.00.00.90 | Zinc oxide; zinc peroxide. - Other | Free |
| 2818.10.00.00 | Artificial corundum, whether or not chemically defined; aluminum oxide; aluminum hydroxide. - Artificial corundum, whether or not chemically defined | Free |
| 2818.20.00 | Artificial corundum, whether or not chemically defined; aluminum oxide; aluminum hydroxide. - Aluminum oxide, other than artificial corundum | Free |
| 2818.20.00.10 | Artificial corundum, whether or not chemically defined; aluminum oxide; aluminum hydroxide. - Aluminum oxide, other than artificial corundum - Alumina prepared for processing into aluminum | Free |
| 2818.20.00.20 | Artificial corundum, whether or not chemically defined; aluminum oxide; aluminum hydroxide. - Aluminum oxide, other than artificial corundum - Activated alumina | Free |
| 2818.20.00.90 | Artificial corundum, whether or not chemically defined; aluminum oxide; aluminum hydroxide. - Aluminum oxide, other than artificial corundum - Other | Free |
| 2818.30.00.00 | Artificial corundum, whether or not chemically defined; aluminum oxide; aluminum hydroxide. - Aluminum hydroxide | Free |
| 2819.10.00.00 | Chromium oxides and hydroxides. - Chromium trioxide | Free |
| 2819.90.00.00 | Chromium oxides and hydroxides. - Other | Free |
| 2820.10.00.00 | Manganese oxides. - Manganese dioxide | Free |
| 2820.90.00.00 | Manganese oxides. - Other | Free |
| 2821.10.00.00 | Iron oxides and hydroxides; earth colours containing 70% or more by weight of combined iron evaluated as Fe2O3. - Iron oxides and hydroxides | Free |
| 2821.20.00.00 | Iron oxides and hydroxides; earth colours containing 70% or more by weight of combined iron evaluated as Fe2O3. - Earth colours | Free |
| 2822.00.00.00 | Cobalt oxides and hydroxides; commercial cobalt oxides. | Free |
| 2823.00.00 | Titanium oxides. | Free |
| 2823.00.00.10 | Titanium oxides. - Titanium dioxide | Free |
| 2823.00.00.90 | Titanium oxides. - Other | Free |
| 2824.10.00.00 | Lead oxides; red lead and orange lead. - Lead monoxide (litharge, massicot) | Free |
| 2824.90.00.00 | Lead oxides; red lead and orange lead. - Other | Free |
| 2825.10.00.00 | Hydrazine and hydroxylamine and their inorganic salts; other inorganic bases; other metal oxides, hydroxides and peroxides. - Hydrazine and hydroxylamine and their inorganic salts | Free |
| 2825.20.00.00 | Hydrazine and hydroxylamine and their inorganic salts; other inorganic bases; other metal oxides, hydroxides and peroxides. - Lithium oxide and hydroxide | Free |
| 2825.30.00.00 | Hydrazine and hydroxylamine and their inorganic salts; other inorganic bases; other metal oxides, hydroxides and peroxides. - Vanadium oxides and hydroxides | Free |
| 2825.40.00.00 | Hydrazine and hydroxylamine and their inorganic salts; other inorganic bases; other metal oxides, hydroxides and peroxides. - Nickel oxides and hydroxides | Free |
| 2825.50.00.00 | Hydrazine and hydroxylamine and their inorganic salts; other inorganic bases; other metal oxides, hydroxides and peroxides. - Copper oxides and hydroxides | Free |
| 2825.60.00 | Hydrazine and hydroxylamine and their inorganic salts; other inorganic bases; other metal oxides, hydroxides and peroxides. - Germanium oxides and zirconium dioxide | Free |
| 2825.60.00.10 | Hydrazine and hydroxylamine and their inorganic salts; other inorganic bases; other metal oxides, hydroxides and peroxides. - Germanium oxides and zirconium dioxide - Germanium oxides | Free |
| 2825.60.00.20 | Hydrazine and hydroxylamine and their inorganic salts; other inorganic bases; other metal oxides, hydroxides and peroxides. - Germanium oxides and zirconium dioxide - Zirconium dioxides | Free |
| 2825.70.00.00 | Hydrazine and hydroxylamine and their inorganic salts; other inorganic bases; other metal oxides, hydroxides and peroxides. - Molybdenum oxides and hydroxides | Free |
| 2825.80.00.00 | Hydrazine and hydroxylamine and their inorganic salts; other inorganic bases; other metal oxides, hydroxides and peroxides. - Antimony oxides | Free |
| 2825.90.00.00 | Hydrazine and hydroxylamine and their inorganic salts; other inorganic bases; other metal oxides, hydroxides and peroxides. - Other | Free |
About HS Chapter 28
Chapter 28 of the Canadian customs tariff covers inorganic chemicals. TariffCalc lists 100 10-digit tariff items in this chapter, with MFN (Most Favoured Nation) duty rates ranging from 0.0% to 0.0% (average 0.0%).
100 of 100 items (100%) are duty-free under MFN. Importers from countries with Canadian free trade agreements (CUSMA, CETA, CPTPP, CCFTA, CKFTA, and others) can often import at 0% when rules of origin are met.
Example calculation
| Value for duty (CAD) | $10,000 |
| MFN duty (0.0%) | $0 |
| GST 5% | $500 |
| Total landed (before freight) | $10,500 |
Simplified illustrative calculation. Provincial taxes (HST/PST/QST) and surtaxes not included.
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What is HS Chapter 28 in the Canadian customs tariff?▾
Chapter 28 covers inorganic chemicals. It contains 100 10-digit tariff items in the TariffCalc database, with MFN duty rates ranging from 0.0% to 0.0%.
What is the typical duty rate for Chapter 28 imports?▾
The average MFN rate across Chapter 28 is 0.0%. The majority of items (100%) are duty-free (0%) under MFN. Free trade agreements (CUSMA, CETA, CPTPP) may reduce the rate to 0% for qualifying goods.
Do free trade agreements apply?▾
Yes. Most items in this chapter qualify for preferential rates under CUSMA (US, Mexico), CETA (EU, UK), CPTPP (Japan, Vietnam, etc.), and other Canadian FTAs. See each tariff item’s detail page for the full rate-by-agreement breakdown.
How do I calculate import duties?▾
For a CAD $10,000 shipment in this chapter at the average MFN rate (0.0%), duties would be approximately $0, plus 5% GST ($500), for a total of $10,500 before freight. Use the TariffCalc calculator for a precise calculation by tariff item, country of origin, and province.
Calculate import duties for Chapter 28 products
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