CHAPTER 28

Inorganic Chemicals

Section VI of the U.S. Harmonized Tariff Schedule. 50 headings.

Headings in this chapter

2801 Fluorine, chlorine, bromine and iodine: 2802 Sulfur, sublimed or precipitated; colloidal sulfur 2803 Carbon (carbon blacks and other forms of carbon not elsewhere specified or included) 2804 Hydrogen, rare gases and other nonmetals: 2805 Alkali or alkaline-earth metals; rare-earth metals, scandium and yttrium, whether or not intermixed or interalloyed; mercury: 2806 Hydrogen chloride (Hydrochloric acid); chlorosulfuric acid: 2807 Sulfuric acid; oleum 2808 Nitric acid; sulfonitric 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 nonmetals: 2812 Halides and halide oxides of nonmetals: 2813 Sulfides of nonmetals; commercial phosphorus trisulfide: 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; aluminum oxide; aluminum hydroxide: 2819 Chromium oxides and hydroxides: 2820 Manganese oxides: 2821 Iron oxides and hydroxides; earth colors containing 70 percent 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: 2826 Fluorides; fluorosilicates, fluoroaluminates and other complex fluorine salts: 2827 Chlorides, chloride oxides and chloride hydroxides; bromides and bromide oxides; iodides and iodide oxides: 2828 Hypochlorites; commercial calcium hypochlorite; chlorites; hypobromites: 2829 Chlorates and perchlorates; bromates and perbromates; iodates and periodates: 2830 Sulfides; polysulfides, whether or not chemically defined: 2831 Dithionites and sulfoxylates: 2832 Sulfites; thiosulfates: 2833 Sulfates; alums; peroxosulfates (persulfates): 2834 Nitrites; nitrates: 2835 Phosphinates (hypophosphites), phosphonates (phosphites) and phosphates; polyphosphates, whether or not chemically defined: 2836 Carbonates; peroxocarbonates (percarbonates); commercial ammonium carbonate containing ammonium carbamate: 2837 Cyanides, cyanide oxides and complex cyanides: 2839 Silicates; commercial alkali metal silicates: 2840 Borates; peroxoborates (perborates): 2841 Salts of oxometallic or peroxometallic acids: 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: 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 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: 2847 Hydrogen peroxide, whether or not solidified with urea 2849 Carbides, whether or not chemically defined: 2850 Hydrides, nitrides, azides, silicides and borides, whether or not chemically defined, other than compounds which are also carbides of heading 2849: 2852 Inorganic or organic compounds of mercury, whether or not chemically defined, excluding amalgams: 2853 Phosphides, 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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