Inorganic chemicals; compounds of precious metals, of rare-earth metals, of radioactive elements or of isotopes

50 headings. Select one for its current duty rates, recorded rate changes, and Federal Register actions.

• 2801Fluorine, chlorine, bromine and iodine:
• 2802Duty rates and change history
• 2803Duty rates and change history
• 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:
• 2807Duty rates and change history
• 2808Duty rates and change history
• 2809Diphosphorus pentaoxide; phosphoric acid;polyphosphoric acids, whether or not chemically defined:
• 2810Duty rates and change history
• 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:
• 2817Duty rates and change history
• 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:
• 2822Duty rates and change history
• 2823Duty rates and change history
• 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:
• 2847Duty rates and change history
• 2849Carbides, whether or not chemically defined:
• 2850Duty rates and change history
• 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: