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Chapter 28Inorganic chemicals; organic or inorganic compounds of precious metals, of rare-earth metals, of radioactive elements or of isotopesUS Harmonized Tariff Schedule
U.S. Import Duty, Tariffs, and Classification Details for Chapter 28
Inorganic chemicals; organic or inorganic compounds of precious metals, of rare-earth metals, of radioactive elements or of isotopes, classified under Section VI (Products of the Chemical or Allied Industries) in the Harmonized Tariff Schedule — covering 50 headings.
Other Chapters in Section VI
Ch. 29Organic chemicalsCh. 30Pharmaceutical productsCh. 31FertilizersCh. 32Tanning or dyeing extracts; dyes, pigments, paints, varnishes, putty and masticsCh. 33Essential oils and resinoids; perfumery, cosmetic or toilet preparationsCh. 34Soap, organic surface-active agents, washing preparations, lubricating preparations, artificial waxes, prepared waxes, polishing or scouring preparations, candles and similar articles, modeling pastes, 'dental waxes' and dental preparations with a basis of plasterCh. 35Albuminoidal substances; modified starches; glues; enzymesCh. 36Explosives; pyrotechnic products; matches; pyrophoric alloys; certain combustible preparationsCh. 37Photographic or cinematographic goodsCh. 38Miscellaneous chemical products
HTS Headings in Chapter 28
502801Fluorine, chlorine, bromine and iodine:
2802.00.00.00Sulfur, sublimed or precipitated; colloidal sulfur
2803.00.00Carbon (carbon blacks and other forms of carbon not elsewhere specified or included)
2804Hydrogen, rare gases and other nonmetals:
2805Alkali or alkaline-earth metals; rare-earth metals, scandium and yttrium, whether or not intermixed or interalloyed; mercury:
2806Hydrogen chloride (Hydrochloric acid); chlorosulfuric acid:
2807.00.00.00Sulfuric acid; oleum
2808.00.00Nitric acid; sulfonitric acids
2809Diphosphorus pentaoxide; phosphoric acid;polyphosphoric acids, whether or not chemically defined:
2810.00.00.00Oxides of boron; boric acids
2811Other inorganic acids and other inorganic oxygen compounds of nonmetals:
2812Halides and halide oxides of nonmetals:
2813Sulfides of nonmetals; commercial phosphorus trisulfide:
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:
2817.00.00.00Zinc oxide; zinc peroxide
2818Artificial corundum, whether or not chemically defined; aluminum oxide; aluminum hydroxide:
2819Chromium oxides and hydroxides:
2820Manganese oxides:
2821Iron oxides and hydroxides; earth colors containing 70 percent or more by weight of combined iron evaluated as Fe2O3:
2822.00.00Cobalt oxides and hydroxides; commercial cobalt oxides
2823.00.00.00Titanium 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 hydroxides; bromides and bromide oxides; iodides and iodide oxides:
2828Hypochlorites; commercial calcium hypochlorite; chlorites; hypobromites:
2829Chlorates and perchlorates; bromates and perbromates; iodates and periodates:
2830Sulfides; polysulfides, whether or not chemically defined:
2831Dithionites and sulfoxylates:
2832Sulfites; thiosulfates:
2833Sulfates; alums; peroxosulfates (persulfates):
2834Nitrites; nitrates:
2835Phosphinates (hypophosphites), phosphonates (phosphites) and phosphates; polyphosphates, whether or not chemically defined:
2836Carbonates; peroxocarbonates (percarbonates); 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 chemical 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:
2847.00.00.00Hydrogen peroxide, whether or not solidified with urea
2849Carbides, whether or not chemically defined:
2850.00Hydrides, 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 ferrophosphorous; 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:
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