United States · Chapter 28· 200 entries
§28Inorganic chemicals
Section VIProducts of the chemical or allied industries · Chapters 28–38（WCO HS）
Headings (4-digit WCO)
50 headings
2801Fluorine, chlorine, bromine and iodine→2802Sulphur, sublimed or precipitated; colloidal sulphur→2803Carbon (carbon blacks and other forms of carbon not elsewhere specified or included)→2804Hydrogen, rare gases and other non-metals→2805Alkali or alkaline-earth metals; rare-earth metals, scandium and yttrium, whether or not intermixed or interalloyed; mercury→2806Hydrogen chloride (hydrochloric acid); chlorosulphuric acid→2807Sulphuric acid; oleum→2808Nitric acid; sulphonitric acids→2809Diphosphorus pentaoxide; phosphoric acid; poly-phosphoric acids, whether or not chemically defined→2810Oxides of boron; boric acids→2811Other inorganic acids and other inorganic oxygen compounds of non-metals→2812Halides and halide oxides of non-metals→2813Sulphides of non-metals; commercial phosphorus trisulphide→2814Ammonia, anhydrous or in aqueous solution→2815Sodium hydroxide (caustic soda); potassium hydroxide (caustic potash); peroxides of sodium or potassium→2816Hydroxide and peroxide of magnesium; oxides, hydroxides and peroxides, of strontium or barium→2817Zinc oxide; zinc peroxide→2818Artificial corundum, whether or not chemically defined; aluminium oxide; aluminium hydroxide→2819Chromium oxides and hydroxides→2820Manganese oxides→2821IRON OXIDES AND HYDROXIDES; EARTH COLOURS CONTAINING 70% OR MORE BY WEIGHT OF COMBINED IRON EVALUATED AS FE2O3→2822Cobalt oxides and hydroxides; commercial cobalt oxides→2823Titanium oxides→2824Lead oxides; red lead and orange lead→2825Hydrazine and hydroxylamine and their inorganic salts; other inorganic bases; other metal oxides, hydroxides and peroxides→2826Fluorides; fluorosilicates, fluoroaluminates and other complex fluorine salts→2827Chlorides, chloride oxides and chloride hydro-xides; bromides and bromide oxides; iodides and iodide oxides→2828Hypochlorites; commercial calcium hypochlori-tes; chlorites; hypobromites→2829Chlorates and perchlorates; bromates and perbromates; iodates and periodates→2830Sulphides; polysulphides, whether or not chemically defined→2831Dithionites and sulphoxylates→2832Sulphites; thiosulphates→2833Sulphates; alums; peroxosulphates (persulpha-tes)→2834Nitrites; nitrates→2835Phosphinates (hypophosphites), phosphonates (phosphites) and phosphates; polyphosphates, whether or not chemically defined→2836Carbonates; peroxocarbonates (percarbonat-es); commercial ammonium carbonate containing ammonium carbamate→2837Cyanides, cyanide oxides and complex cyanides→2839Silicates; commercial alkali metal silicates→2840Borates; peroxoborates (perborates)→2841Salts of oxometallic or peroxometallic acids→2842Other salts of inorganic acids or peroxoacids, (including aluminosilicates, whether or not chemically defined), other than azides→2843Colloidal precious metals; inorganic or organic compounds of precious metals, whether or not chemically defined; amalgams of precious metals→2844Radioactive chemical elements and radioactive isotopes (including the fissile or fertile chemi-cal elements and isotopes) and their compounds; mixtures and residues containing these products→2845Isotopes other than those of heading 2844; compounds, inorganic or organic, of such isotopes, whether or not chemically defined→2846Compounds, inorganic or organic, of rare-earth metals, of yttrium or of scandium or of mixtures of these metals→2847Compounds, inorganic or organic, of rare-earth metals, of yttrium or of scandium or of mixtures of these metals→2849Carbides, whether or not chemically defined→2850Hydrides, nitrides, azides, silicides and borides, whether or not chemically defined, other than compounds which are also carbides of heading 2849→2852Inorganic or organic compounds of mercury, whether or not chemically defined, excluding amalgams→2853Phosphides, 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→
United States tariff lines (top 200)
373 total in chapter — drill into a heading above for the rest| HS Code | Description | Primary rate | |
|---|---|---|---|
| 28011000 | Chlorine | Free | → |
| 28012000 | Iodine | Free | → |
| 28013010 | Fluorine | 3.7% | → |
| 28013020 | Bromine | 5.5% | → |
| 28020000 | Sulfur, sublimed or precipitated; colloidal sulfur | Free | → |
| 2803.00.00 | Carbon (carbon blacks and other forms of carbon not elsewhere specified or included) | Free | → |
| 2803.00.00.10 | Carbon black | Free | → |
| 2803.00.00.50 | Other | Free | → |
| 28041000 | Hydrogen | 3.7% | → |
| 28042100 | Argon | 3.7% | → |
| 2804.29.00 | Other | 3.7% | → |
| 2804.29.00.10 | Helium | 3.7% | → |
| 2804.29.00.20 | Neon | 3.7% | → |
| 2804.29.00.30 | Isotopically pure rare gases having a purity of 99 percent or more by volume | 3.7% | → |
| 2804.29.00.55 | Other | 3.7% | → |
| 28043000 | Nitrogen | 3.7% | → |
| 28044000 | Oxygen | 3.7% | → |
| 2804.50.00 | Boron; tellurium | Free | → |
| 2804.50.00.10 | Boron | Free | → |
| 2804.50.00.20 | Tellurium | Free | → |
| 28046100 | Containing by weight not less than 99.99 percent of silicon | Free | → |
| 28046910 | Containing by weight less than 99.99 percent but not less than 99 percent of silicon | 5.3% | → |
| 28046950 | Other | 5.5% | → |
| 28047000 | Phosphorus | Free | → |
| 28048000 | Arsenic | Free | → |
| 28049000 | Selenium | Free | → |
| 28051100 | Sodium | 5.3% | → |
| 28051200 | Calcium | 3% | → |
| 28051910 | Strontium | 3.7% | → |
| 28051920 | Barium | Free | → |
| 2805.19.90 | Other | 5.5% | → |
| 2805.19.90.10 | Lithium | 5.5% | → |
| 2805.19.90.90 | Other | 5.5% | → |
| 2805.30.00 | Rare-earth metals, scandium and yttrium, whether or not intermixed or interalloyed | 5% | → |
| 2805.30.00.05 | Lanthanum | 5% | → |
| 2805.30.00.10 | Cerium | 5% | → |
| 2805.30.00.15 | Praseodymium | 5% | → |
| 2805.30.00.20 | Neodymium | 5% | → |
| 2805.30.00.50 | Other | 5% | → |
| 2805.30.00.90 | Other | 5% | → |
| 28054000 | Mercury | 1.7% | → |
| 28061000 | Hydrogen chloride (Hydrochloric acid) | Free | → |
| 28062000 | Chlorosulfuric acid | 4.2% | → |
| 28070000 | Sulfuric acid; oleum | Free | → |
| 2808.00.00 | Nitric acid; sulfonitric acids | Free | → |
| 2808.00.00.10 | Nitric acid | Free | → |
| 2808.00.00.20 | Sulfonitric acids | Free | → |
| 28091000 | Diphosphorus pentaoxide | Free | → |
| 2809.20.00 | Phosphoric acid and polyphosphoric acids | Free | → |
| 2809.20.00.10 | Containing less than 65 percent available diphosphorus pentaoxide (P2O5) equivalents | Free | → |
| 2809.20.00.20 | Other | Free | → |
| 2809.20.00.30 | Other | Free | → |
| 2809.20.00.40 | Polyphosphoric acids | Free | → |
| 28100000 | Oxides of boron; boric acids | 1.5% | → |
| 28111100 | Hydrogen fluoride (Hydrofluoric acid) | Free | → |
| 28111200 | Hydrogen cyanide (hydrocyanic acid) | 4.2% | → |
| 28111910 | Arsenic acid | 2.3% | → |
| 28111930 | Hydrobromic acid | Free | → |
| 2811.19.61 | Other | 4.2% | → |
| 2811.19.61.10 | Sulfamic acid | 4.2% | → |
| 2811.19.61.90 | Other | 4.2% | → |
| 28112100 | Carbon dioxide | 3.7% | → |
| 28112210 | Synthetic silica gel | 3.7% | → |
| 28112250 | Other | Free | → |
| 28112910 | Arsenic trioxide | Free | → |
| 28112920 | Selenium dioxide | Free | → |
| 28112930 | Sulfur dioxide | 4.2% | → |
| 28112950 | Other | 3.7% | → |
| 28121100 | Carbonyl dichloride (phosgene) | 3.7% | → |
| 28121200 | Phosphorous oxychloride | 3.7% | → |
| 28121300 | Phosphorous trichloride | 3.7% | → |
| 28121400 | Phosphorous pentachloride | Free | → |
| 28121500 | Sulfur monochloride | 3.7% | → |
| 28121600 | Sulfur dichloride | 3.7% | → |
| 28121700 | Thionyl chloride | 3.7% | → |
| 2812.19.00 | Other | 3.7% | → |
| 2812.19.00.10 | Arsenic trichloride | 3.7% | → |
| 2812.19.00.90 | Other | 3.7% | → |
| 2812.90.00 | Other | 3.7% | → |
| 2812.90.00.10 | Sulfur hexafluoride | 3.7% | → |
| 2812.90.00.90 | Other | 3.7% | → |
| 28131000 | Carbon disulfide | 3.7% | → |
| 28139010 | Of arsenic | Free | → |
| 28139020 | Of phosphorus | Free | → |
| 28139050 | Other | 3.7% | → |
| 28141000 | Anhydrous ammonia | Free | → |
| 28142000 | Ammonia in aqueous solution | Free | → |
| 28151100 | Solid | Free | → |
| 28151200 | In aqueous solution (Soda lye or liquid soda) | Free | → |
| 2815.20.00 | Potassium hydroxide (Caustic potash) | Free | → |
| 2815.20.00.50 | In solid form | Free | → |
| 2815.20.00.90 | Other | Free | → |
| 28153000 | Peroxides of sodium or potassium | 3.7% | → |
| 28161000 | Hydroxide and peroxide of magnesium | 3.1% | → |
| 28164010 | Of strontium | 4.2% | → |
| 28164020 | Of barium | 2% | → |
| 28170000 | Zinc oxide; zinc peroxide | Free | → |
| 28181010 | Crude | Free | → |
| 2818.10.20 | In grains, or ground, pulverized or refined | 1.3% | → |
| 2818.10.20.10 | White, pink or ruby, containing more than 97.5 percent by weight of aluminum oxide | 1.3% | → |
| 2818.10.20.90 | Other | 1.3% | → |
| 28182000 | Aluminum oxide, other than artificial corundum | Free | → |
| 28183000 | Aluminum hydroxide | Free | → |
| 28191000 | Chromium trioxide | 3.7% | → |
| 28199000 | Other | 3.7% | → |
| 28201000 | Manganese dioxide | 4.7% | → |
| 28209000 | Other | 4.7% | → |
| 2821.10.00 | Iron oxides and hydroxides | 3.7% | → |
| 2821.10.00.10 | Black | 3.7% | → |
| 2821.10.00.20 | Red | 3.7% | → |
| 2821.10.00.30 | Yellow | 3.7% | → |
| 2821.10.00.40 | Other | 3.7% | → |
| 2821.10.00.50 | Other | 3.7% | → |
| 28212000 | Earth colors | 5.5% | → |
| 2822.00.00 | Cobalt oxides and hydroxides; commercial cobalt oxides | 0.1% | → |
| 2822.00.00.10 | Cobalt(II, III) oxide (cobalt tetroxide) | 0.1% | → |
| 2822.00.00.90 | Other | 0.1% | → |
| 28230000 | Titanium oxides | 5.5% | → |
| 28241000 | Lead monoxide (litharge, massicot) | 3% | → |
| 28249010 | Lead suboxide (leady litharge) | 5.5% | → |
| 28249020 | Red lead and orange lead | 3.4% | → |
| 28249050 | Other | 4.8% | → |
| 28251000 | Hydrazine and hydroxylamine and their inorganic salts | 3.7% | → |
| 28252000 | Lithium oxide and hydroxide | 3.7% | → |
| 2825.30.00 | Vanadium oxides and hydroxides | 5.5% | → |
| 2825.30.00.10 | Vanadium pentoxide (anhydride) | 5.5% | → |
| 2825.30.00.50 | Other | 5.5% | → |
| 28254000 | Nickel oxides and hydroxides | Free | → |
| 28255010 | Cupric oxide | 4.3% | → |
| 28255020 | Cuprous oxide | 5% | → |
| 28255030 | Copper hydroxides | 3.9% | → |
| 2825.60.00 | Germanium oxides and zirconium dioxide | 3.7% | → |
| 2825.60.00.10 | Germanium dioxide | 3.7% | → |
| 2825.60.00.20 | Zirconium dioxide | 3.7% | → |
| 2825.60.00.50 | Other | 3.7% | → |
| 28257000 | Molybdenum oxides and hydroxides | 3.2% | → |
| 28258000 | Antimony oxides | Free | → |
| 28259010 | Beryllium oxide and hydroxide | 3.7% | → |
| 28259015 | Niobium oxide | 3.7% | → |
| 28259020 | Tin oxides | 4.2% | → |
| 28259030 | Tungsten oxides | 5.5% | → |
| 28259075 | Cadmium oxide | Free | → |
| 28259090 | Other | 3.7% | → |
| 28261200 | Of aluminum | Free | → |
| 28261910 | Of ammonium | 3.1% | → |
| 28261920 | Of sodium | 3.7% | → |
| 28261990 | Other | 3.9% | → |
| 28263000 | Sodium hexafluoroaluminate (Synthetic cryolite) | Free | → |
| 28269010 | Fluorosilicates of sodium or of potassium | 4.1% | → |
| 2826.90.90 | Other | 3.1% | → |
| 2826.90.90.10 | Lithium hexafluorophosphate | 3.1% | → |
| 2826.90.90.90 | Other | 3.1% | → |
| 28271000 | Ammonium chloride | 2.9% | → |
| 28272000 | Calcium chloride | Free | → |
| 28273100 | Of magnesium | 1.5% | → |
| 28273200 | Of aluminum | Free | → |
| 28273500 | Of nickel | 3.7% | → |
| 28273910 | Of vanadium | 5.5% | → |
| 28273925 | Of tin | 4.2% | → |
| 28273930 | Of titanium | 4.9% | → |
| 28273940 | Of tungsten | 5.5% | → |
| 28273945 | Of barium | 4.2% | → |
| 28273955 | Of iron | 3.7% | → |
| 28273960 | Of cobalt | 4.2% | → |
| 28273965 | Of zinc | 1.6% | → |
| 2827.39.90 | Other | 3.7% | → |
| 2827.39.90.10 | Of lithium | 3.7% | → |
| 2827.39.90.50 | Other | 3.7% | → |
| 28274100 | Of copper | 3.9% | → |
| 28274910 | Of vanadium | 5.5% | → |
| 28274950 | Other | 5.5% | → |
| 28275100 | Bromides of sodium or of potassium | Free | → |
| 28275925 | Of ammonium, of calcium or of zinc | Free | → |
| 28275951 | Other | 3.6% | → |
| 28276010 | Of calcium or of copper | Free | → |
| 28276020 | Of potassium | 2.8% | → |
| 28276051 | Other | 4.2% | → |
| 28281000 | Commercial calcium hypochlorite and other calcium hypochlorites | 2.4% | → |
| 28289000 | Other | 3.7% | → |
| 28291100 | Of sodium | Free | → |
| 28291901 | Other | 3.3% | → |
| 28299005 | Potassium bromate | Free | → |
| 28299025 | Sodium bromate | Free | → |
| 28299040 | Of potassium | 3.1% | → |
| 28299061 | Other | 3.7% | → |
| 28301000 | Sodium sulfides | 3.7% | → |
| 28309010 | Zinc sulfide, luminescent grade having a purity of 99.99 percent or more by weight | Free | → |
| 28309015 | Other zinc sulfide | 2.8% | → |
| 28309020 | Cadmium sulfide | 3.1% | → |
| 28309090 | Other | 3% | → |
| 28311010 | Sodium formaldehyde sulfoxylate | Free | → |
| 28311050 | Other | 5.5% | → |
| 28319000 | Other | 5.5% | → |
| 28321000 | Sodium sulfites | 1.5% | → |
| 28322000 | Other sulfites | 3.1% | → |
| 28323010 | Sodium thiosulfate | 1.5% | → |
| 28323050 | Other | 3.1% | → |
| 28331110 | Salt cake | Free | → |
| 2833.11.50 | Other | 0.4% | → |
| 2833.11.50.10 | Anhydrous | 0.4% | → |