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2801 Fluorine, chlorine, bromine & iodine 280110 Chlorine 280120 Iodine 280130 Fluorine; bromine 2802 Sulfur, sublimed or precipitated; colloidal sulfur 280200 Sulfur, sublimed or precipitated; collodial sulfur 2803 Carbon, including carbon black & other carbons nesoi (not elsewhere specified or included) 280300 Carbon, nesoi (including carbon black) 2804 Hydrogen, rare gases and other nonmetals argon, helium, nitrogen, oxygen, boron, silicon, phosphorous, arsenic, selenium 280410 Hydrogen 280421 Argon 280429 Rare gases, other than argon 280430 Nitrogen 280440 Oxygen 280450 Boron and tellurium 280461 Silicon contain by wt nt <99.99% of silicon 280469 Silicon, under 99.99% (by weight) silicon 280470 Phosphorus 280480 Arsenic 280490 Selenium 2805 Alkali or alkaline-earth metals; rare-earth metals (including intermixed or interalloyed); mercury scandium, yttrium, sodium, calcium, strontium, barium 280511 Sodium 280519 Alkali metals except sodium 280521 Calcium 280522 Strontium and barium 280530 Rare-earth metal, scandium & yttrium 280540 Mercury 2806 Hydrogen chloride; chlorosulfuric acid hydrochloric acid 280610 Hydrogen chloride (hydrochloric acid) 280620 Chlorosulfuric acid 2807 Sulfuric acid and oleum 280700 Sulfuric acid; oleum 2808 Nitric acid and sulfonitric acids 280800 Nitric acid, sulfonitric acids 2809 Diphosphorus pentaoxide; phosphoric acid & polyphosphoric acids 280910 Diphosphorus pentaoxide 280920 Phosphoric acid and polyphosphoric acids 2810 Oxides of boron; boric acids 281000 Oxides of boron and boric acid 2811 Other inorganic acids & inorganic oxygen compounds of nonmetals arsenic acid, sulfamic acid, carbon dioxide, silicon dioxide, arsenic trioxide 281111 Hydrogen fluoride (hydrofluoric acid) 281119 Inorganic acids, nesoi 281121 Carbon dioxide 281122 Silicon dioxide 281123 Sulfur dioxide 281129 Inorganic oxygen compounds of nonmetals, nesoi 2812 Halides & halide oxides of nonmetals 281210 Chlorides and chloride oxides 281290 Halides & halide oxides of nonmetals, nesoi 2813 Sulfides of nonmetals; commercial phosphorous trisulfide 281310 Carbon disulfide 281390 Sulfides of nonmetals nesoi; comm phosp trisulfide 2814 Ammonia, anhydrous or in aqueous solution 281410 Anhydrous ammonia 281420 Ammonia in aqueous solution 2815 Sodium hydroxide; potassium hydroxide; peroxides of sodium or potassium caustic soda, caustic potash 281511 Solid sodium hydroxide (caustic soda) 281512 Sodium hydroxide in aqueous solution 281520 Potassium hydroxide (caustic potash) 281530 Peroxides of sodium or potassium 2816 Hydroxide & peroxide of..magnesium, strontium, barium; oxides of..strontium, barium 281610 Magnesium hydroxide and magnesium peroxide 281620 Strontium oxide, hydroxide and peroxides 281630 Barium oxides, hydroxides and peroxides 2817 Zinc oxide and zinc peroxide 281700 Zinc oxide and zinc peroxide 2818 Aluminum oxide(including artificial corundum); aluminum hydroxide 281810 Artificial corundum 281820 Aluminum oxide, except artificial corundum, nesoi 281830 Aluminum hydroxide 2819 Chromium oxides and hydroxides 281910 Chromium trioxide 281990 Chromium oxide & hydride, exc chrom trioxide, nesoi 2820 Manganese oxides 282010 Manganese dioxide 282090 Manganese oxides, except manganese dioxide, nesoi 2821 Iron oxides & hydroxides; earth colors with 70% or more by weight of combined iron, fe203 synthetic pigments 282110 Iron oxides and hydroxides 282120 Earth color cont>= 70% by wt combine iron as fe2o3 2822 Cobalt oxide & hydroxide; commercial cobalt oxides 282200 Cobalt oxide & hydroxide; commercial cobalt oxides 2823 Titanium oxides 282300 Titanium oxides 2824 Lead oxides; red lead and orange lead 282410 Lead monoxide (litharge, massicot) 282420 Red lead and orange lead 282490 Lead oxides, nesoi 2825 Hydrazine & hydroxylamine & their inorganic salts; other inorganic bases, metal oxides, hydroxides & peroxides 282510 Hydrazine & hydroxylamine & their inorganic salts 282520 Lithium oxide and hydroxide 282530 Vanadium oxides and hydroxides 282540 Nickel oxides and hydroxides 282550 Copper oxides and hydroxides 282560 Germanium oxides and zirconium dioxide 282570 Molybdenum oxides and hydroxides 282580 Antimony oxides 282590 Inorganic base; metal oxides, & peroxides, nesoi 2826 Fluorides; fluorosilicates, fluoroaluminates etc 282611 Flourides of ammonium or of sodium 282612 Fluorides of aluminum 282619 Fluorides, nesoi 282620 Fluorosilicates of sodium or of potassium 282630 Sodium hexafluoroaluminate (synthetic cryolite) 282690 Fluoroaluminate & other fluorine salts, nesoi, etc 2827 Chlorides, chloride oxides & hydroxides, bromides & bromide oxides, iodides & iodide oxides 282710 Ammonium chloride 282720 Calcium chloride 282731 Magnesium chloride 282732 Aluminum chloride 282733 Iron chloride 282734 Cobalt chloride 282735 Nickel chloride 282736 Zinc chloride 282737 Tin chloride 282738 Barium chloride 282739 Chlorides, nesoi 282741 Caloride oxides and caloride hydroxides of copper 282749 Chloride oxides and chloride hydroxides, nesoi 282751 Bromides of sodium or of potassium 282759 Bromides and bromide oxides, nesoi 282760 Iodides and iodide oxides 2828 Hypochlorites; commercial calcium hypochlorite; chlorites; hypobromites 282810 Commercial calcium hypochlorite 282890 Hypochlorites, chlorites, and hypobromites, nesoi 2829 Chlorates etc; bromates etc; iodates etc. 282911 Sodium chlorate 282919 Chlorates, except sodium chlorate, nesoi 282990 Perchlorates; bromates & perbrom; iodates & period 2830 Sulfides; polysulfides 283010 Sodium sulfides 283020 Zinc sulfide 283030 Cadmium sulfide 283090 Sulfides and polysulfides, nesoi 2831 Dithionites and sulfoxylates 283110 Dithionites and sulfoxylates of sodium 283190 Dithionites & sulfoxylate, exc of sodium, nesoi 2832 Sulfites; thiosulfates 283210 Sodium sulfites 283220 Other sulfites, except sodium sulfites, nesoi 283230 Thiosulfates 2833 Sulfates; alums; peroxosulfates persulfates 283311 Disodium sulfate 283319 Sodium sulfates, except disodium sulfates, nesoi 283321 Magnesium sulfate 283322 Aluminum sulfate 283323 Chromium sulfate 283324 Nickel sulfate 283325 Copper sulfate 283326 Zinc sulfate 283327 Barium sulfate 283329 Other sulfates, nesoi 283330 Alums 283340 Peroxosulfates (persulfates) 2834 Nitrites; nitrates 283410 Nitrites 283421 Potassium nitrate 283422 Bismuth nitrates 283429 Nitrates, nesoi 2835 Phosphinates, phosphonates, phosphates & polyphosphates hypophosphites, phosphites 283510 Phosphinates (hypophosphites) & phosphonates 283521 Triammonium phosphates 283522 Mono- or disodium phosphates 283523 Trisodium phosphate 283524 Potassium phosphate 283525 Calcium hydrogenorthophosphate (dicalc phosphate) 283526 Phosphates of calcium, nesoi 283529 Phosphates, nesoi 283531 Sodium triphosphate (sodium tripolyphosphate) 283539 Polyphosphates, nesoi 2836 Carbonates; peroxocarbonates; commercial ammonium carbonate containing ammonium carbamate 283610 Commercial ammonium carbonates 283620 Disodium carbonate 283630 Sodium hydrogencarbonate (sodium bicarbonate) 283640 Potassium carbonates 283650 Calcium carbonate 283660 Barium carbonate 283670 Lead carbonate 283691 Lithium carbonates 283692 Strontium carbonate 283693 Bismuth carbonate 283699 Peroxocarbonates (percarbonates), nesoi 2837 Cyanides, cyanide oxides and complex cyanides 283711 Cyanides and cyanide oxides of sodium 283719 Cyanides and cyanide oxides, nesoi 283720 Complex cyanides 2838 Fulminates, cyanates and thiocyanates 283800 Fulminates, cyanates and thiocyanates 2839 Silicates; commercial alkali metal silicates 283911 Sodium metasilicates 283919 Silicate of sodium, exc sodium metasilicate, nesoi 283920 Silicate; comm alkali metal silicate, of potassium 283990 Silicate; commercial alkali metal silicates, nesoi 2840 Borates; peroxoborates perborates 284011 Anhydrous disodium tetraborate (refined borax) 284019 Disodium tetraborate, exc anhydrous, nesoi 284020 Borates, nesoi 284030 Peroxoborates (perborates) 2841 Salts of oxometallic or peroxometallic acids 284110 Aluminates 284120 Chromates of zinc or of lead 284130 Sodium dichromate 284140 Potassium dichromate 284150 Other chromate & dichromate; peroxochromate, nesoi 284160 Manganites, manganates and permanganates 284170 Molybdates (molybdenum content) 284180 Tungstates (wolframates) 284190 Salt of inorganic acid/peroxoacid, exc azide, nesoi 2842 Other salts of inorganic acids or peroxoacids, excluding azides 284210 Double or complex silicates 284290 Salt of inorganic acid/peroxoacid, exc azide nesoi 2843 Colloidal precious metals; precious metal compounds & amalgams 284310 Colloidal precious metals 284321 Silver nitrate 284329 Silver compounds, except silver nitrate, nesoi 284330 Gold compounds 284390 Organic compound precious metal; amalgrams, nesoi 2844 Radioactive chemical elements & isotopes and compounds, mixtures & residues 284410 Natural uranium & compounds, alloys & ceramics etc 284420 Uranium enriched in u235 etc. plutonium etc. 284430 Uranium depleted in u235 etc; thorium etc. 284440 Radioactive elements & isotopes etc nesoi; residue 284450 Spent fuel element (cartridge) of nuclear reators 2845 Stable isotopes and compounds thereof 284510 Heavy water (deuterium oxide) 284590 Isotope exc hdg 2844; compound inorgan/organ, nesoi 2846 Rare-earth metal compounds of yttrium or scandium 284610 Cerium compounds 284690 Compounds, inorgan/organ, rare-earth metals, nesoi 2847 Hydrogen peroxide, whether or not solidified with urea 284700 Hydrogen peroxide, whether/not solidified w/ urea 2848 Phosphides, excluding ferrophosphorus 284810 Phosphides, copper, contain > 15% by wt phosphorus 284890 Phosphide, exc ferrophosphorus, of metal/nonmetals 2849 Carbides 284910 Carbides, chemically defined or not, of calcium 284920 Carbides of silicon, chemically defined or not 284990 Carbides, nesoi, chemically defined or not 2850 Hydrides, nitrides, azides, silicides & borides 285000 Hydrides & nitrides, chemically defined/nt, nesoi 2851 Other inorganic compounds; liquid & compressed air; amalgams not of precious metal 285100 Other inorganic compounds; liq air; amalgams, nesoi | ||
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