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search for chapter = 28 inorganic chemicals; organic or inorganic compounds of precious metals, of rare earth metals, of radioactive elements or of isotopes
280110 chlorine 280120 iodine 280130 fluorine and bromine 280200 sulphur, sublimed/ precipitated; colloidal sulphur 280300 carbon (carbon blacks and other forms not elsewhere specified or included) 280410 hydrogen 280421 argon (rare gases) 280429 other rare gases 280430 nitrogen 280440 oxygen 280450 boron; tellurium 280461 silicon, containing by weight => 99.99% of silicon 280469 other silicon 280470 phosphorus 280490 selenium 280511 sodium (alkali metal) 280512 calcium 280521 calcium (earth alkali metal) 280530 rare earth metals, scandium and yttrium, whether or not intermixed or interalloyed 280540 mercury 280610 hydrogen chloride (hydrochloric acid) 280620 chlorosulphuric acid 280700 sulphuric acid and oleum 280800 nitric acid; sulphonitric acids 280920 phosphoric acid and polyphosphoric acids 281000 oxides of boron; boric acids 281111 hydrogen fluoride (hydrofluoric acid) 281119 other inorganic acids 281121 carbon dioxide 281122 silicon dioxide 281129 other inorganic oxygen compounds of non-metals 281210 chlorides and chloride oxides 281290 other halides and halide oxides of non-metals 281390 other sulphides of non-metals and commercial phosphorus trisulphide 281410 anhydrous ammonia 281420 ammonia in aqueous solution (ammonia) 281511 solid sodium hydroxide (caustic soda) 281512 sodium hydroxide (caustic soda) in aqueous solution 281520 potassium hydroxide (caustic potash) 281610 hydroxide and peroxide of magnesium 281620 oxide, peroxide and peroxide of strontium 281630 oxide, peroxide and peroxide of barium 281640 oxides, hydroxides and peroxides, of strontium or barium 281700 zinc oxide, zinc peroxide 281810 artificial corundum, chemically defined or not 281820 aluminum oxide, excluding artificial corundum 281830 aluminum hydroxide 281910 chromium trioxide 281990 chromium oxides and hydroxides 282010 manganese dioxide 282090 other manganese oxides 282110 iron oxides and hydroxides 282120 earth colors containing => 70% by weight of combined iron evaluated as fe2o3 282200 cobalt oxides and hydroxides, including commercial ones 282300 titanium oxides 282410 lead monoxide (litharge, massicot) 282420 red lead and orange lead. (mine-orange) 282490 other lead oxides 282510 hydrazine & hydroxylamine & their inorganic salts 282530 vanadium oxides and hydroxides 282540 nickel oxides and hydroxides 282550 copper oxides and hydroxides 282560 germanium oxides and zirconium dioxide 282580 antimony oxides 282590 other inorganic bases; other metal oxides, hydroxides and peroxides 282611 fluorides of ammonium or of sodium 282612 fluorides of aluminum 282619 other fluorides 282620 fluorosilicates of sodium or of potassium 282630 sodium hexafluoroaluminate (synthetic cyollite) 282690 other fluorosilicates, fluoroaluminates and complex fluorine salts 282710 ammonium chloride 282720 calcium chloride 282731 magnesium chloride 282732 aluminum chloride 282733 iron chloride 282734 cobalt chloride 282736 zinc chloride 282738 barium chloride 282739 other chlorides 282741 chloride oxides and chloride hydroxides of copper 282749 other chloride oxides and chloride hydroxides 282751 bromides of sodium or of potassium 282759 other bromides and bromide oxides 282760 iodides and iodide oxides 282810 calcium hypochlorite, including commercial 282890 other hypochlorites, chlorites and hypobromites 282911 chlorates of sodium 282919 other chlorates 282990 bromates and perbromates; iodates and periodates; perchlorates 283010 sodium sulphides 283020 zinc sulphide 283090 other sulphides and polysulphides 283110 dithinites and sulphoxylates of sodium 283190 other dithionites and sulphoxylates 283210 sodium sulphites 283220 other sulphites 283230 thiosulphates 283311 disodium sulphate 283319 other sodium sulphate 283321 sulphate of magnesium 283322 sulphate of aluminum 283323 sulphate of chromium 283324 sulphate of nickel 283325 sulphate of copper 283326 sulphate of zinc 283327 sulphate of barium 283329 other sulphates 283340 peroxosulphates (persulphates) 283410 nitrites 283429 other nitrates 283510 phosphinates (hypophosphites) and phosphonates (phosphites) 283522 phosphates of mono or disodium 283523 phosphates of trisodium 283524 phosphates of potassium 283525 calcium hydrogenorthophosphate (dicalcium) 283526 other phosphates of calcium 283529 other phosphates 283531 sodium triphosphate (sodium tripolyphosphate) 283539 other polyphosphates 283610 ammonium carbonate, including commercial 283620 disodium carbonate 283630 sodium hydrogencarbonate (sodium bicarbonate) 283640 potassium carbonates 283650 calcium carbonate 283660 barium carbonate 283691 lithium carbonates 283692 strontium carbonate 283699 other carbonates and peroxocarbonates (percarbonates) 283711 cyanides and oxycyanides of sodium 283719 other cyanides and oxycyanides 283911 sodium metasilicates 283919 other sodium silicates 283990 other silicates 284011 anhydrous disodium tetraborate (refined borax) 284019 other disodium tetraborates (refined borax) 284020 other borates 284030 peroxoborates (perborates) 284110 aluminates 284120 chromates of zinc and lead 284130 sodium dichromate 284140 potassium dichromate 284150 other chromates and dichromates; peroxochromates 284161 potassium permanganate 284170 molybdates 284190 other salts of oxometallic or peroxometallic acids 284210 double or complex silicates of inorganic acids or peroxides 284290 other salts of inorganic acids or peroxacids, excluding azides 284310 colloidal precious metals 284321 silver nitrates 284329 other silver compounds 284330 gold compounds 284390 other inorganic or organic compounds of precious metals; amalgams 284420 uranium enriched in U235 and its compounds: plutonium and its compounds; alloys, dispersions and mixtures of these products 284440 radioactive elements, isotopes and compounds; alloys, dispersions and mixtures of these products; radioactive residues 284610 cerium compounds 284690 other compounds of rare-earth metals, of yttrium or of scandium or of mixtures of these metals 284700 hydrogen peroxide (oxygenated water), whether or not solidified with urea 284800 phosphides, excluding ferrophosphorus, chemically defined or not 284910 carbides of calcium, chemically defined or not 284920 carbides of silicon, chemically defined or not 284990 other carbides, chemically defined or not 285000 hydrides, nitrides, azides, silicides and borides, chemically defined or not 285100 other inorganic compounds; liquid air; compressed air; amalgams, excl. precious metals
