Harmonized Tariff Schedule of the United States
Harmonized Tariff Schedule of the United States, chapter 28: Inorganic chemicals; organic or inorganic compounds of precious metals, of rare-earth metals, of radioactive elements or of isotopes
- 274Tariff lines
- 0%–5.5%Rate
Chapter 28 has 274 lines in the Harmonized Tariff Schedule of the United States, spread over 50 headings.
Rates run from 0% to 5.5%, averaging 2.5%; 80 lines are duty-free.
The most detailed heading is 2827 (chlorides, chloride oxides and chloride hydroxides) with 23 lines.
The most common rate is zero, on 80 lines.
The highest is 5.5% on 2801.30.20 (fluorine, chlorine, bromine and iodine: fluorine; bromine, bromine).
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
- 2804.10.00Hydrogen, rare gases and other nonmetals: hydrogen
- 2804.21.00Hydrogen, rare gases and other nonmetals: rare gases, argon
- 2804.29.00Hydrogen, rare gases and other nonmetals: rare gases, other
- 2804.30.00Hydrogen, rare gases and other nonmetals: nitrogen
- 2804.40.00Hydrogen, rare gases and other nonmetals: oxygen
- 2804.50.00Hydrogen, rare gases and other nonmetals: boron; tellurium
- 2804.61.00Containing by weight not less than 99.99 percent of silicon
- 2804.69.10Containing by weight less than 99.99 percent but not less than 99 percent of silicon
- 2804.69.50Hydrogen, rare gases and other nonmetals: silicon, other, other
- 2804.70.00Hydrogen, rare gases and other nonmetals: phosphorus
- 2804.80.00Hydrogen, rare gases and other nonmetals: arsenic
- 2804.90.00Hydrogen, rare gases and other nonmetals: selenium
2805 Alkali or alkaline-earth metals; rare-earth metals, scandium and yttrium, whether or not intermixed or interalloyed; mercury
- 2805.11.00Alkali or alkaline-earth metals: sodium
- 2805.12.00Alkali or alkaline-earth metals: calcium
- 2805.19.10Alkali or alkaline-earth metals: other, strontium
- 2805.19.20Alkali or alkaline-earth metals: other, barium
- 2805.19.90Alkali or alkaline-earth metals: other, other
- 2805.30.00Rare-earth metals, scandium and yttrium, whether or not intermixed or interalloyed
- 2805.40.00Alkali or alkaline-earth metals: 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
- 2811.11.00Hydrogen fluoride (Hydrofluoric acid)
- 2811.12.00Hydrogen cyanide (hydrocyanic acid)
- 2811.19.10Other inorganic acids and other inorganic oxygen compounds: other inorganic acids, other, arsenic acid
- 2811.19.30Other inorganic acids and other inorganic oxygen compounds: other inorganic acids, other, hydrobromic acid
- 2811.19.61Other inorganic acids and other inorganic oxygen compounds: other inorganic acids, other, other
- 2811.21.00Other inorganic oxygen compounds of nonmetals: carbon dioxide
- 2811.22.10Other inorganic oxygen compounds of nonmetals: silicon dioxide, synthetic silica gel
- 2811.22.50Other inorganic oxygen compounds of nonmetals: silicon dioxide, other
- 2811.29.10Other inorganic oxygen compounds of nonmetals: other, arsenic trioxide
- 2811.29.20Other inorganic oxygen compounds of nonmetals: other, selenium dioxide
- 2811.29.30Other inorganic oxygen compounds of nonmetals: other, sulfur dioxide
- 2811.29.50Other inorganic oxygen compounds of nonmetals: other, other
2812 Halides and halide oxides of non-metals
- 2812.11.00Chlorides and chloride oxides: carbonyl dichloride (phosgene)
- 2812.12.00Chlorides and chloride oxides: phosphorous oxychloride
- 2812.13.00Chlorides and chloride oxides: phosphorous trichloride
- 2812.14.00Chlorides and chloride oxides: phosphorous pentachloride
- 2812.15.00Chlorides and chloride oxides: sulfur monochloride
- 2812.16.00Chlorides and chloride oxides: sulfur dichloride
- 2812.17.00Chlorides and chloride oxides: thionyl chloride
- 2812.19.00Chlorides and chloride oxides: other
- 2812.90.00Halides and halide oxides of nonmetals: other
2813 Sulphides of non-metals; commercial phosphorus trisulphide
- 2813.10.00Sulfides of nonmetals; commercial phosphorus trisulfide: carbon disulfide
- 2813.90.10Sulfides of nonmetals; commercial phosphorus trisulfide: other, of arsenic
- 2813.90.20Sulfides of nonmetals; commercial phosphorus trisulfide: other, of phosphorus
- 2813.90.50Sulfides of nonmetals; commercial phosphorus trisulfide: other, other
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
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
- 2825.10.00Hydrazine and hydroxylamine and their inorganic salts
- 2825.20.00Lithium oxide and hydroxide
- 2825.30.00Vanadium oxides and hydroxides
- 2825.40.00Nickel oxides and hydroxides
- 2825.50.10Copper oxides and hydroxides: cupric oxide
- 2825.50.20Copper oxides and hydroxides: cuprous oxide
- 2825.50.30Copper oxides and hydroxides: copper hydroxides
- 2825.60.00Germanium oxides and zirconium dioxide
- 2825.70.00Molybdenum oxides and hydroxides
- 2825.80.00Hydrazine and hydroxylamine and their inorganic salts: antimony oxides
- 2825.90.10Beryllium oxide and hydroxide
- 2825.90.15Hydrazine and hydroxylamine and their inorganic salts: other, niobium oxide
- 2825.90.20Hydrazine and hydroxylamine and their inorganic salts: other, tin oxides
- 2825.90.30Hydrazine and hydroxylamine and their inorganic salts: other, tungsten oxides
- 2825.90.75Hydrazine and hydroxylamine and their inorganic salts: other, cadmium oxide
- 2825.90.90Hydrazine and hydroxylamine and their inorganic salts: other, other
2826 Fluorides; fluorosilicates, fluoroaluminates and other complex fluorine salts
- 2826.12.00Fluorides: fluorides, of aluminum
- 2826.19.10Fluorides: fluorides, other, of ammonium
- 2826.19.20Fluorides: fluorides, other, of sodium
- 2826.19.90Fluorides: fluorides, other, other
- 2826.30.00Sodium hexafluoroaluminate (Synthetic cryolite)
- 2826.90.10Fluorosilicates of sodium or of potassium
- 2826.90.90Fluorides: other, other
2827 Chlorides, chloride oxides and chloride hydroxides; bromides and bromide oxides; iodides and iodide oxides
- 2827.10.00Chlorides, chloride oxides and chloride hydroxides: ammonium chloride
- 2827.20.00Chlorides, chloride oxides and chloride hydroxides: calcium chloride
- 2827.31.00Chlorides, chloride oxides and chloride hydroxides: other chlorides, of magnesium
- 2827.32.00Chlorides, chloride oxides and chloride hydroxides: other chlorides, of aluminum
- 2827.35.00Chlorides, chloride oxides and chloride hydroxides: other chlorides, of nickel
- 2827.39.10Chlorides, chloride oxides and chloride hydroxides: other chlorides, other, of vanadium
- 2827.39.25Chlorides, chloride oxides and chloride hydroxides: other chlorides, other, of tin
- 2827.39.30Chlorides, chloride oxides and chloride hydroxides: other chlorides, other, of titanium
- 2827.39.40Chlorides, chloride oxides and chloride hydroxides: other chlorides, other, of tungsten
- 2827.39.45Chlorides, chloride oxides and chloride hydroxides: other chlorides, other, of barium
- 2827.39.55Chlorides, chloride oxides and chloride hydroxides: other chlorides, other, of iron
- 2827.39.60Chlorides, chloride oxides and chloride hydroxides: other chlorides, other, of cobalt
- 2827.39.65Chlorides, chloride oxides and chloride hydroxides: other chlorides, other, of zinc
- 2827.39.90Chlorides, chloride oxides and chloride hydroxides: other chlorides, other, other
- 2827.41.00Chloride oxides and chloride hydroxides: of copper
- 2827.49.10Chloride oxides and chloride hydroxides: other, of vanadium
- 2827.49.50Chloride oxides and chloride hydroxides: other, other
- 2827.51.00Bromides of sodium or of potassium
- 2827.59.25Of ammonium, of calcium or of zinc
- 2827.59.51Bromides and bromide oxides: other, other
- 2827.60.10Of calcium or of copper
- 2827.60.20Iodides and iodide oxides: of potassium
- 2827.60.51Iodides and iodide oxides: other
2828 Hypochlorites; commercial calcium hypochlorite; chlorites; hypobromites
2829 Chlorates and perchlorates; bromates and perbromates; iodates and periodates
- 2829.11.00Chlorates and perchlorates: chlorates, of sodium
- 2829.19.01Chlorates and perchlorates: chlorates, other
- 2829.90.05Chlorates and perchlorates: other, potassium bromate
- 2829.90.25Chlorates and perchlorates: other, sodium bromate
- 2829.90.40Chlorates and perchlorates: other, other, of potassium
- 2829.90.61Chlorates and perchlorates: other, other, other
2830 Sulphides; polysulphides, whether or not chemically defined
- 2830.10.00Sulfides; polysulfides, whether or not chemically defined: sodium sulfides
- 2830.90.10Zinc sulfide, luminescent grade having a purity of 99.99 percent or more by weight
- 2830.90.15Sulfides; polysulfides, whether or not chemically defined: other, other zinc sulfide
- 2830.90.20Sulfides; polysulfides, whether or not chemically defined: other, cadmium sulfide
- 2830.90.90Sulfides; polysulfides, whether or not chemically defined: other, other
2831 Dithionites and sulphoxylates
2832 Sulphites; thiosulphates
2833 Sulphates; alums; peroxosulphates (persulphates)
- 2833.11.10Sulfates; alums; peroxosulfates (persulfates): sodium sulfates, disodium sulfate, salt cake
- 2833.11.50Sulfates; alums; peroxosulfates (persulfates): sodium sulfates, disodium sulfate, other
- 2833.19.00Sulfates; alums; peroxosulfates (persulfates): sodium sulfates, other
- 2833.21.00Sulfates; alums; peroxosulfates (persulfates): other sulfates, of magnesium
- 2833.22.00Sulfates; alums; peroxosulfates (persulfates): other sulfates, of aluminum
- 2833.24.00Sulfates; alums; peroxosulfates (persulfates): other sulfates, of nickel
- 2833.25.00Sulfates; alums; peroxosulfates (persulfates): other sulfates, of copper
- 2833.27.00Sulfates; alums; peroxosulfates (persulfates): other sulfates, of barium
- 2833.29.10Sulfates; alums; peroxosulfates (persulfates): other sulfates, other, of cobalt
- 2833.29.20Sulfates; alums; peroxosulfates (persulfates): other sulfates, other, of iron
- 2833.29.30Sulfates; alums; peroxosulfates (persulfates): other sulfates, other, of vanadium
- 2833.29.40Sulfates; alums; peroxosulfates (persulfates): other sulfates, other, of chromium
- 2833.29.45Sulfates; alums; peroxosulfates (persulfates): other sulfates, other, of zinc
- 2833.29.51Sulfates; alums; peroxosulfates (persulfates): other sulfates, other, other
- 2833.30.00Sulfates; alums; peroxosulfates (persulfates): alums
- 2833.40.20Sulfates; alums; peroxosulfates (persulfates): peroxosulfates (persulfates), of sodium
- 2833.40.60Sulfates; alums; peroxosulfates (persulfates): peroxosulfates (persulfates), other
2834 Nitrites; nitrates
- 2834.10.10Nitrites; nitrates, nitrites, of sodium
- 2834.10.50Nitrites; nitrates, nitrites, other
- 2834.21.00Nitrites; nitrates, nitrates, of potassium
- 2834.29.05Nitrites; nitrates, nitrates, other, of bismuth
- 2834.29.10Nitrites; nitrates, nitrates, other, of calcium
- 2834.29.20Nitrites; nitrates, nitrates, other, of strontium
- 2834.29.51Nitrites; nitrates, nitrates, other, other
2835 Phosphinates (hypophosphites), phosphonates (phosphites) and phosphates; polyphosphates, whether or not chemically defined
- 2835.10.00Phosphinates (hypophosphites) and phosphonates (phosphites)
- 2835.22.00Of mono- or disodium
- 2835.24.00Phosphinates: phosphates, of potassium
- 2835.25.00Calcium hydrogenorthophosphate (" Dicalcium phosphate")
- 2835.26.00Other phosphates of calcium
- 2835.29.10Phosphinates: phosphates, other, of aluminum
- 2835.29.20Phosphinates: phosphates, other, of triammonium
- 2835.29.30Phosphinates: phosphates, other, of trisodium
- 2835.29.51Phosphinates: phosphates, other, other
- 2835.31.00Sodium triphosphate (Sodium tripolyphosphate)
- 2835.39.10Phosphinates: polyphosphates, other, of potassium
- 2835.39.50Phosphinates: polyphosphates, other, other
2836 Carbonates; peroxocarbonates (percarbonates); commercial ammonium carbonate containing ammonium carbamate
- 2836.20.00Carbonates: disodium carbonate
- 2836.30.00Sodium hydrogencarbonate (Sodium bicarbonate)
- 2836.40.10Carbonates: potassium carbonates, dipotassium carbonate
- 2836.40.20Potassium hydrogencarbonate (Potassium bicarbonate)
- 2836.50.00Carbonates: calcium carbonate
- 2836.60.00Carbonates: barium carbonate
- 2836.91.00Carbonates: other, lithium carbonates
- 2836.92.00Carbonates: other, strontium carbonate
- 2836.99.10Carbonates: other, other, cobalt carbonates
- 2836.99.20Carbonates: other, other, bismuth carbonate
- 2836.99.30Commercial ammonium carbonate and other ammonium carbonates
- 2836.99.40Carbonates: other, other, lead carbonates
- 2836.99.50Carbonates: other, other, other
2837 Cyanides, cyanide oxides and complex cyanides
2839 Silicates; commercial alkali metal silicates
- 2839.11.00Silicates; commercial alkali metal silicates: of sodium, sodium metasilicates
- 2839.19.00Silicates; commercial alkali metal silicates: of sodium, other
- 2839.90.10Silicates; commercial alkali metal silicates: other, of potassium
- 2839.90.50Silicates; commercial alkali metal silicates: other, other
2840 Borates; peroxoborates (perborates)
2841 Salts of oxometallic or peroxometallic acids
- 2841.30.00Salts of oxometallic or peroxometallic acids: sodium dichromate
- 2841.50.10Other chromates and dichromates; peroxochromates: potassium dichromate
- 2841.50.91Other chromates and dichromates; peroxochromates: other
- 2841.61.00Manganites, manganates and permanganates: potassium permanganate
- 2841.69.00Manganites, manganates and permanganates: other
- 2841.70.10Salts of oxometallic or peroxometallic acids: molybdates, of ammonium
- 2841.70.50Salts of oxometallic or peroxometallic acids: molybdates, other
- 2841.80.00Salts of oxometallic or peroxometallic acids: tungstates (wolframates)
- 2841.90.10Salts of oxometallic or peroxometallic acids: other, vanadates
- 2841.90.20Salts of oxometallic or peroxometallic acids: other, ammonium perrhenate
- 2841.90.30Salts of oxometallic or peroxometallic acids: other, potassium stannate
- 2841.90.40Salts of oxometallic or peroxometallic acids: other, aluminates
- 2841.90.45Chromates of zinc or of lead
- 2841.90.50Salts of oxometallic or peroxometallic acids: other, other
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
- 2843.10.00Colloidal precious metals: colloidal precious metals
- 2843.21.00Colloidal precious metals: silver compounds, silver nitrate
- 2843.29.01Colloidal precious metals: silver compounds, other
- 2843.30.00Colloidal precious metals: gold compounds
- 2843.90.00Colloidal precious metals: other compounds; amalgams
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
- 2844.10.10Natural uranium and its compounds: uranium metal
- 2844.10.20Natural uranium and its compounds: uranium compounds
- 2844.10.50Natural uranium and its compounds: other
- 2844.20.00Uranium enriched in U235 and its compounds; plutonium and its compounds; alloys, dispersions (including cermets), ceramic products and mixtures containing uranium enriched in U235, plutonium or compounds of these products
- 2844.30.10Uranium depleted in U235 and its compounds: thorium compounds
- 2844.30.20Uranium depleted in U235 and its compounds: uranium compounds
- 2844.30.50Uranium depleted in U235 and its compounds: other
- 2844.41.00Tritium and its compounds; alloys, dispersions (including cermets), ceramic products and mixtures containing tritium or its compounds
- 2844.42.00Actinium-225, actinium-227, californium-253, curium-240, curium-241, curium-242, curium-243, curium-244, einsteinium-253, einsteinium-254, gadolinium-148, polonium-208, polonium-209, polonium-210, radium-223, uranium-230 or uranium-232, and their compounds; alloys, dispersions (including cermets), ceramic products and mixtures containing these elements or compounds
- 2844.43.00Other radioactive elements and isotopes and compounds; other alloys, dispersions (including cermets), ceramic products and mixtures containing these elements, isotopes or compounds
- 2844.44.00Radioactive elements and isotopes and compounds other than: radioactive residues
- 2844.50.00Spent (irradiated) fuel elements (cartridges) of nuclear reactors
2845 Isotopes other than those of heading 2844; 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
- 2846.10.00Compounds, inorganic or organic, of rare-earth metals: cerium compounds
- 2846.90.20Mixtures of rare-earth oxides or of rare-earth chlorides
- 2846.90.40Yttrium bearing materials and compounds containing by weight more than 19 percent but less than 85 percent yttrium oxide equivalent
- 2846.90.80Compounds, inorganic or organic, of rare-earth metals: other, other, other
2847 Hydrogen peroxide, whether or not solidified with urea
2849 Carbides, whether or not chemically defined
- 2849.10.00Carbides, whether or not chemically defined: of calcium
- 2849.20.10Carbides, whether or not chemically defined: of silicon, crude
- 2849.20.20In grains, or ground, pulverized or refined
- 2849.90.10Carbides, whether or not chemically defined: other, of boron
- 2849.90.20Carbides, whether or not chemically defined: other, of chromium
- 2849.90.30Carbides, whether or not chemically defined: other, of tungsten
- 2849.90.50Carbides, whether or not chemically defined: other, other
2850 Hydrides, nitrides, azides, silicides and borides, whether or not chemically defined, other than compounds which are also carbides of heading 2849
- 2850.00.05Hydrides, nitrides, azides, silicides and borides, whether: of calcium
- 2850.00.07Hydrides, nitrides, azides, silicides and borides, whether: of titanium
- 2850.00.10Hydrides, nitrides, azides, silicides and borides, whether: of tungsten
- 2850.00.20Hydrides, nitrides, azides, silicides and borides, whether: of vanadium
- 2850.00.50Hydrides, nitrides, azides, silicides and borides, whether: other
2852 Inorganic or organic compounds of mercury, whether or not chemically defined, excluding amalgams
- 2852.10.10Mercuric oxide, mercuric cyanide, mercuric oxycyanide and mercuric potassium cyanide
- 2852.10.90Inorganic or organic compounds of mercury, whether: chemically defined, other
- 2852.90.05Albuminates, tannates and phosphides of mercury
- 2852.90.90Inorganic or organic compounds of mercury, whether: other, other
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
- 2853.10.00Phosphides, whether or not chemically defined, excluding: cyanogen chloride (chloorcyan)
- 2853.90.10Of copper (phosphor copper), containing more than 15 percent by weight of phosphorous
- 2853.90.50Of other metals or nonmetals
- 2853.90.90Phosphides, whether or not chemically defined, excluding: other, other