Chapter 28: Chapter 28

Section HS: Harmonized System

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: