Chapter 28: Inorganic chemicals; organic or inorganic compounds of precious metals, of rare-earth metals, of radioactive elements or of isotopes

Code

Description

2801

Fluorine, chlorine, bromine and iodine:
- 2801 1000 00
  
  Chlorine
- 2801 2000 00
  
  Iodine
- 2801 30
  
  Fluorine; bromine:
  - 2801 3010 00
    
    Fluorine
  - 2801 3020 00
    
    Bromine
2802 0000 00

Sulfur, sublimed or precipitated; colloidal sulfur
2803 0000

Carbon (carbon blacks and other forms of carbon not elsewhere specified or included)
- 2803 0000 10
  
  Carbon black
- 2803 0000 50
  
  Other
2804

Hydrogen, rare gases and other nonmetals:
- 2804 1000 00
  
  Hydrogen
- Rare gases:
  - 2804 2100 00
    
    Argon
  - 2804 2900
    
    Other
    
    2804 2900 10
    
    Helium
    
    2804 2900 20
    
    Neon
    
    2804 2900 30
    
    Isotopically pure rare gases having a purity of 99 percent or more by volume
    
    2804 2900 55
    
    Other
- 2804 3000 00
  
  Nitrogen
- 2804 4000 00
  
  Oxygen
- 2804 5000
  
  Boron; tellurium
  - 2804 5000 10
    
    Boron
  - 2804 5000 20
    
    Tellurium
- Silicon:
  - 2804 6100 00
    
    Containing by weight not less than 99.99 percent of silicon
  - 2804 69
    
    Other:
    
    2804 6910 00
    
    Containing by weight less than 99.99 percent but not less than 99 percent of silicon
    
    2804 6950 00
    
    Other
- 2804 7000 00
  
  Phosphorus
- 2804 8000 00
  
  Arsenic
- 2804 9000 00
  
  Selenium
2805

Alkali or alkaline-earth metals; rare-earth metals, scandium and yttrium, whether or not intermixed or interalloyed; mercury:
- Alkali or alkaline-earth metals:
  - 2805 1100 00
    
    Sodium
  - 2805 1200 00
    
    Calcium
  - 2805 19
    
    Other:
    
    2805 1910 00
    
    Strontium
    
    2805 1920 00
    
    Barium
    
    2805 1990
    
    Other
    
    2805 1990 10
    
    Lithium
    
    2805 1990 90
    
    Other
- 2805 3000
  
  Rare-earth metals, scandium and yttrium, whether or not intermixed or interalloyed
  - Not intermixed or interalloyed:
    
    2805 3000 05
    
    Lanthanum
    
    2805 3000 10
    
    Cerium
    
    2805 3000 15
    
    Praseodymium
    
    2805 3000 20
    
    Neodymium
    
    2805 3000 50
    
    Other
  - 2805 3000 90
    
    Other
- 2805 4000 00
  
  Mercury
- II. INORGANIC ACIDS AND INORGANIC OXYGEN COMPOUNDS OF NONMETALS
2806

Hydrogen chloride (Hydrochloric acid); chlorosulfuric acid:
- 2806 1000 00
  
  Hydrogen chloride (Hydrochloric acid)
- 2806 2000 00
  
  Chlorosulfuric acid
2807 0000 00

Sulfuric acid; oleum
2808 0000

Nitric acid; sulfonitric acids
- 2808 0000 10
  
  Nitric acid
- 2808 0000 20
  
  Sulfonitric acids
2809

Diphosphorus pentaoxide; phosphoric acid;polyphosphoric acids, whether or not chemically defined:
- 2809 1000 00
  
  Diphosphorus pentaoxide
- 2809 2000
  
  Phosphoric acid and polyphosphoric acids
  - Phosphoric acid:
    
    Fertilizer grade:
    
    2809 2000 10
    
    Containing less than 65 percent available diphosphorus pentaoxide (P2O5) equivalents
    
    2809 2000 20
    
    Other
    
    2809 2000 30
    
    Other
  - 2809 2000 40
    
    Polyphosphoric acids
2810 0000 00

Oxides of boron; boric acids
2811

Other inorganic acids and other inorganic oxygen compounds of nonmetals:
- Other inorganic acids:
  - 2811 1100 00
    
    Hydrogen fluoride (Hydrofluoric acid)
  - 2811 1200 00
    
    Hydrogen cyanide (hydrocyanic acid)
  - 2811 19
    
    Other:
    
    2811 1910 00
    
    Arsenic acid
    
    2811 1930 00
    
    Hydrobromic acid
    
    2811 1961
    
    Other
    
    2811 1961 10
    
    Sulfamic acid
    
    2811 1961 90
    
    Other
- Other inorganic oxygen compounds of nonmetals:
  - 2811 2100 00
    
    Carbon dioxide
  - 2811 22
    
    Silicon dioxide:
    
    2811 2210 00
    
    Synthetic silica gel
    
    2811 2250 00
    
    Other
  - 2811 29
    
    Other:
    
    2811 2910 00
    
    Arsenic trioxide
    
    2811 2920 00
    
    Selenium dioxide
    
    2811 2930 00
    
    Sulfur dioxide
    
    2811 2950 00
    
    Other
- III. HALOGEN OR SULFUR COMPOUNDS OF NONMETALS
2812

Halides and halide oxides of nonmetals:
- Chlorides and chloride oxides:
  - 2812 1100 00
    
    Carbonyl dichloride (phosgene)
  - 2812 1200 00
    
    Phosphorous oxychloride
  - 2812 1300 00
    
    Phosphorous trichloride
  - 2812 1400 00
    
    Phosphorous pentachloride
  - 2812 1500 00
    
    Sulfur monochloride
  - 2812 1600 00
    
    Sulfur dichloride
  - 2812 1700 00
    
    Thionyl chloride
  - 2812 1900
    
    Other
    
    2812 1900 10
    
    Arsenic trichloride
    
    2812 1900 90
    
    Other
- 2812 9000
  
  Other
  - 2812 9000 10
    
    Sulfur hexafluoride
  - 2812 9000 90
    
    Other
2813

Sulfides of nonmetals; commercial phosphorus trisulfide:
- 2813 1000 00
  
  Carbon disulfide
- 2813 90
  
  Other:
  - 2813 9010 00
    
    Of arsenic
  - 2813 9020 00
    
    Of phosphorus
  - 2813 9050 00
    
    Other
- IV. INORGANIC BASES AND OXIDES, HYDROXIDES AND PEROXIDES OF METALS
2814

Ammonia, anhydrous or in aqueous solution:
- 2814 1000 00
  
  Anhydrous ammonia
- 2814 2000 00
  
  Ammonia in aqueous solution
2815

Sodium hydroxide (Caustic soda); potassium hydroxide (Caustic potash); peroxides of sodium or potassium:
- Sodium hydroxide (Caustic soda):
  - 2815 1100 00
    
    Solid
  - 2815 1200 00
    
    In aqueous solution (Soda lye or liquid soda)
- 2815 2000
  
  Potassium hydroxide (Caustic potash)
  - 2815 2000 50
    
    In solid form
  - 2815 2000 90
    
    Other
- 2815 3000 00
  
  Peroxides of sodium or potassium
2816

Hydroxide and peroxide of magnesium; oxides, hydroxides and peroxides, of strontium or barium:
- 2816 1000 00
  
  Hydroxide and peroxide of magnesium
- 2816 40
  
  Oxides, hydroxides and peroxides, of strontium or barium:
  - 2816 4010 00
    
    Of strontium
  - 2816 4020 00
    
    Of barium
2817 0000 00

Zinc oxide; zinc peroxide
2818

Artificial corundum, whether or not chemically defined; aluminum oxide; aluminum hydroxide:
- 2818 10
  
  Artificial corundum, whether or not chemically defined:
  - 2818 1010 00
    
    Crude
  - 2818 1020
    
    In grains, or ground, pulverized or refined
    
    2818 1020 10
    
    White, pink or ruby, containing more than 97.5 percent by weight of aluminum oxide
    
    2818 1020 90
    
    Other
- 2818 2000 00
  
  Aluminum oxide, other than artificial corundum
- 2818 3000 00
  
  Aluminum hydroxide
2819

Chromium oxides and hydroxides:
- 2819 1000 00
  
  Chromium trioxide
- 2819 9000 00
  
  Other
2820

Manganese oxides:
- 2820 1000 00
  
  Manganese dioxide
- 2820 9000 00
  
  Other
2821

Iron oxides and hydroxides; earth colors containing 70 percent or more by weight of combined iron evaluated as Fe2O3:
- 2821 1000
  
  Iron oxides and hydroxides
  - Synthetic pigments:
    
    2821 1000 10
    
    Black
    
    2821 1000 20
    
    Red
    
    2821 1000 30
    
    Yellow
    
    2821 1000 40
    
    Other
  - 2821 1000 50
    
    Other
- 2821 2000 00
  
  Earth colors
2822 0000

Cobalt oxides and hydroxides; commercial cobalt oxides
- 2822 0000 10
  
  Cobalt(II, III) oxide (cobalt tetroxide)
- 2822 0000 90
  
  Other
2823 0000 00

Titanium oxides
2824

Lead oxides; red lead and orange lead:
- 2824 1000 00
  
  Lead monoxide (litharge, massicot)
- 2824 90
  
  Other:
  - 2824 9010 00
    
    Lead suboxide (leady litharge)
  - 2824 9020 00
    
    Red lead and orange lead
  - 2824 9050 00
    
    Other
2825

Hydrazine and hydroxylamine and their inorganic salts; other inorganic bases; other metal oxides, hydroxides and peroxides:
- 2825 1000 00
  
  Hydrazine and hydroxylamine and their inorganic salts
- 2825 2000 00
  
  Lithium oxide and hydroxide
- 2825 3000
  
  Vanadium oxides and hydroxides
  - 2825 3000 10
    
    Vanadium pentoxide (anhydride)
  - 2825 3000 50
    
    Other
- 2825 4000 00
  
  Nickel oxides and hydroxides
- 2825 50
  
  Copper oxides and hydroxides:
  - 2825 5010 00
    
    Cupric oxide
  - 2825 5020 00
    
    Cuprous oxide
  - 2825 5030 00
    
    Copper hydroxides
- 2825 6000
  
  Germanium oxides and zirconium dioxide
  - 2825 6000 10
    
    Germanium dioxide
  - 2825 6000 20
    
    Zirconium dioxide
  - 2825 6000 50
    
    Other
- 2825 7000 00
  
  Molybdenum oxides and hydroxides
- 2825 8000 00
  
  Antimony oxides
- 2825 90
  
  Other:
  - 2825 9010 00
    
    Beryllium oxide and hydroxide
  - 2825 9015 00
    
    Niobium oxide
  - 2825 9020 00
    
    Tin oxides
  - 2825 9030 00
    
    Tungsten oxides
  - 2825 9075 00
    
    Cadmium oxide
  - 2825 9090 00
    
    Other
- V. SALTS AND PEROXYSALTS, OF INORGANIC ACIDS AND METALS
2826

Fluorides; fluorosilicates, fluoroaluminates and other complex fluorine salts:
- Fluorides:
  - 2826 1200 00
    
    Of aluminum
  - 2826 19
    
    Other:
    
    2826 1910 00
    
    Of ammonium
    
    2826 1920 00
    
    Of sodium
    
    2826 1990 00
    
    Other
- 2826 3000 00
  
  Sodium hexafluoroaluminate (Synthetic cryolite)
- 2826 90
  
  Other:
  - 2826 9010 00
    
    Fluorosilicates of sodium or of potassium
  - 2826 9090
    
    Other
    
    2826 9090 10
    
    Lithium hexafluorophosphate
    
    2826 9090 90
    
    Other
2827

Chlorides, chloride oxides and chloride hydroxides; bromides and bromide oxides; iodides and iodide oxides:
- 2827 1000 00
  
  Ammonium chloride
- 2827 2000 00
  
  Calcium chloride
- Other chlorides:
  - 2827 3100 00
    
    Of magnesium
  - 2827 3200 00
    
    Of aluminum
  - 2827 3500 00
    
    Of nickel
  - 2827 39
    
    Other:
    
    2827 3910 00
    
    Of vanadium
    
    2827 3925 00
    
    Of tin
    
    2827 3930 00
    
    Of titanium
    
    2827 3940 00
    
    Of tungsten
    
    2827 3945 00
    
    Of barium
    
    2827 3955 00
    
    Of iron
    
    2827 3960 00
    
    Of cobalt
    
    2827 3965 00
    
    Of zinc
    
    2827 3990
    
    Other
    
    2827 3990 10
    
    Of lithium
    
    2827 3990 50
    
    Other
- Chloride oxides and chloride hydroxides:
  - 2827 4100 00
    
    Of copper
  - 2827 49
    
    Other:
    
    2827 4910 00
    
    Of vanadium
    
    2827 4950 00
    
    Other
- Bromides and bromide oxides:
  - 2827 5100 00
    
    Bromides of sodium or of potassium
  - 2827 59
    
    Other:
    
    2827 5925 00
    
    Of ammonium, of calcium or of zinc
    
    2827 5951 00
    
    Other
- 2827 60
  
  Iodides and iodide oxides:
  - 2827 6010 00
    
    Of calcium or of copper
  - 2827 6020 00
    
    Of potassium
  - 2827 6051 00
    
    Other
2828

Hypochlorites; commercial calcium hypochlorite; chlorites; hypobromites:
- 2828 1000 00
  
  Commercial calcium hypochlorite and other calcium hypochlorites
- 2828 9000 00
  
  Other
2829

Chlorates and perchlorates; bromates and perbromates; iodates and periodates:
- Chlorates:
  - 2829 1100 00
    
    Of sodium
  - 2829 1901 00
    
    Other
- 2829 90
  
  Other:
  - 2829 9005 00
    
    Potassium bromate
  - 2829 9025 00
    
    Sodium bromate
  - Other:
    
    2829 9040 00
    
    Of potassium
    
    2829 9061 00
    
    Other
2830

Sulfides; polysulfides, whether or not chemically defined:
- 2830 1000 00
  
  Sodium sulfides
- 2830 90
  
  Other:
  - 2830 9010 00
    
    Zinc sulfide, luminescent grade having a purity of 99.99 percent or more by weight
  - 2830 9015 00
    
    Other zinc sulfide
  - 2830 9020 00
    
    Cadmium sulfide
  - 2830 9090 00
    
    Other
2831

Dithionites and sulfoxylates:
- 2831 10
  
  Of sodium:
  - 2831 1010 00
    
    Sodium formaldehyde sulfoxylate
  - 2831 1050 00
    
    Other
- 2831 9000 00
  
  Other
2832

Sulfites; thiosulfates:
- 2832 1000 00
  
  Sodium sulfites
- 2832 2000 00
  
  Other sulfites
- 2832 30
  
  Thiosulfates:
  - 2832 3010 00
    
    Sodium thiosulfate
  - 2832 3050 00
    
    Other
2833

Sulfates; alums; peroxosulfates (persulfates):
- Sodium sulfates:
  - 2833 11
    
    Disodium sulfate:
    
    2833 1110 00
    
    Salt cake
    
    2833 1150
    
    Other
    
    2833 1150 10
    
    Anhydrous
    
    2833 1150 50
    
    Other
  - 2833 1900 00
    
    Other
- Other sulfates:
  - 2833 2100 00
    
    Of magnesium
  - 2833 2200 00
    
    Of aluminum
  - 2833 2400 00
    
    Of nickel
  - 2833 2500 00
    
    Of copper
  - 2833 2700 00
    
    Of barium
  - 2833 29
    
    Other:
    
    2833 2910 00
    
    Of cobalt
    
    2833 2920 00
    
    Of iron
    
    2833 2930 00
    
    Of vanadium
    
    2833 2940 00
    
    Of chromium
    
    2833 2945 00
    
    Of zinc
    
    2833 2951
    
    Other
    
    2833 2951 10
    
    Of manganese
    
    2833 2951 90
    
    Other
- 2833 3000 00
  
  Alums
- 2833 40
  
  Peroxosulfates (persulfates):
  - 2833 4020 00
    
    Of sodium
  - 2833 4060
    
    Other
    
    2833 4060 10
    
    Of potassium
    
    2833 4060 20
    
    Of ammonium
    
    2833 4060 50
    
    Other
2834

Nitrites; nitrates:
- 2834 10
  
  Nitrites:
  - 2834 1010 00
    
    Of sodium
  - 2834 1050 00
    
    Other
- Nitrates:
  - 2834 2100 00
    
    Of potassium
  - 2834 29
    
    Other:
    
    2834 2905 00
    
    Of bismuth
    
    2834 2910 00
    
    Of calcium
    
    2834 2920 00
    
    Of strontium
    
    2834 2951 00
    
    Other
2835

Phosphinates (hypophosphites), phosphonates (phosphites) and phosphates; polyphosphates, whether or not chemically defined:
- 2835 1000 00
  
  Phosphinates (hypophosphites) and phosphonates (phosphites)
- Phosphates:
  - 2835 2200 00
    
    Of mono- or disodium
  - 2835 2400 00
    
    Of potassium
  - 2835 2500 00
    
    Calcium hydrogenorthophosphate ("Dicalcium phosphate")
  - 2835 2600 00
    
    Other phosphates of calcium
  - 2835 29
    
    Other:
    
    2835 2910 00
    
    Of aluminum
    
    2835 2920 00
    
    Of triammonium
    
    2835 2930 00
    
    Of trisodium
    
    2835 2951 00
    
    Other
- Polyphosphates:
  - 2835 3100 00
    
    Sodium triphosphate (Sodium tripolyphosphate)
  - 2835 39
    
    Other:
    
    2835 3910 00
    
    Of potassium
    
    2835 3950 00
    
    Other
2836

Carbonates; peroxocarbonates (percarbonates); commercial ammonium carbonate containing ammonium carbamate:
- 2836 2000 00
  
  Disodium carbonate
- 2836 3000 00
  
  Sodium hydrogencarbonate (Sodium bicarbonate)
- 2836 40
  
  Potassium carbonates:
  - 2836 4010 00
    
    Dipotassium carbonate
  - 2836 4020 00
    
    Potassium hydrogencarbonate (Potassium bicarbonate)
- 2836 5000 00
  
  Calcium carbonate
- 2836 6000 00
  
  Barium carbonate
- Other:
  - 2836 9100
    
    Lithium carbonates
    
    2836 9100 10
    
    U.S.P. grade
    
    2836 9100 50
    
    Other
  - 2836 9200 00
    
    Strontium carbonate
  - 2836 99
    
    Other:
    
    2836 9910 00
    
    Cobalt carbonates
    
    2836 9920 00
    
    Bismuth carbonate
    
    2836 9930 00
    
    Commercial ammonium carbonate and other ammonium carbonates
    
    2836 9940 00
    
    Lead carbonates
    
    2836 9950
    
    Other
    
    2836 9950 10
    
    Zirconium carbonates
    
    2836 9950 50
    
    Other
2837

Cyanides, cyanide oxides and complex cyanides:
- Cyanides and cyanide oxides:
  - 2837 1100 00
    
    Of sodium
  - 2837 1901
    
    Other
    
    2837 1901 10
    
    Potassium cyanide
    
    2837 1901 15
    
    Calcium cyanide
    
    2837 1901 25
    
    Other
- 2837 20
  
  Complex cyanides:
  - 2837 2010 00
    
    Potassium ferricyanide
  - 2837 2051 00
    
    Other
2839

Silicates; commercial alkali metal silicates:
- Of sodium:
  - 2839 1100 00
    
    Sodium metasilicates
  - 2839 1900 00
    
    Other
- 2839 90
  
  Other:
  - 2839 9010 00
    
    Of potassium
  - 2839 9050 00
    
    Other
2840

Borates; peroxoborates (perborates):
- Disodium tetraborate (refined borax):
  - 2840 1100 00
    
    Anhydrous
  - 2840 1900 00
    
    Other
- 2840 2000 00
  
  Other borates
- 2840 3000
  
  Peroxoborates (perborates)
  - 2840 3000 10
    
    Sodium perborate
  - 2840 3000 50
    
    Other
2841

Salts of oxometallic or peroxometallic acids:
- 2841 3000 00
  
  Sodium dichromate
- 2841 50
  
  Other chromates and dichromates; peroxochromates:
  - 2841 5010 00
    
    Potassium dichromate
  - 2841 5091 00
    
    Other
- Manganites, manganates and permanganates:
  - 2841 6100 00
    
    Potassium permanganate
  - 2841 6900
    
    Other
    
    2841 6900 10
    
    Sodium permanganate
    
    2841 6900 90
    
    Other
- 2841 70
  
  Molybdates:
  - 2841 7010 00
    
    Of ammonium
  - 2841 7050 00
    
    Other
- 2841 8000
  
  Tungstates (wolframates)
  - 2841 8000 10
    
    Of ammonium
  - 2841 8000 20
    
    Of calcium
  - 2841 8000 50
    
    Other
- 2841 90
  
  Other:
  - 2841 9010 00
    
    Vanadates
  - 2841 9020 00
    
    Ammonium perrhenate
  - 2841 9030 00
    
    Potassium stannate
  - 2841 9040 00
    
    Aluminates
  - 2841 9045 00
    
    Chromates of zinc or of lead
  - 2841 9050 00
    
    Other
2842

Other salts of inorganic acids or peroxoacids (including aluminosilicates whether or not chemically defined), other than azides:
- 2842 1000 00
  
  Double or complex silicates, including aluminosilicates whether or not chemically defined
- 2842 90
  
  Other:
  - 2842 9010 00
    
    Fulminates, cyanates and thiocyanates
  - 2842 9090
    
    Other
    
    2842 9090 10
    
    Selenides and tellurides
    
    2842 9090 50
    
    Other
- VI. MISCELLANEOUS
2843

Colloidal precious metals; inorganic or organic compounds of precious metals, whether or not chemically defined; amalgams of precious metals:
- 2843 1000 00
  
  Colloidal precious metals
- Silver compounds:
  - 2843 2100 00
    
    Silver nitrate
  - 2843 2901 00
    
    Other
- 2843 3000 00
  
  Gold compounds
- 2843 9000 00
  
  Other compounds; amalgams
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:
- 2844 10
  
  Natural uranium and its compounds; alloys, dispersions (including cermets), ceramic products and mixtures containing natural uranium or natural uranium compounds:
  - 2844 1010 00
    
    Uranium metal
  - 2844 1020
    
    Uranium compounds
    
    2844 1020 10
    
    Oxide
    
    2844 1020 25
    
    Hexafluoride
    
    2844 1020 55
    
    Other
  - 2844 1050 00
    
    Other
- 2844 2000
  
  Uranium enriched in U235 and its compounds; plutonium and its compounds; alloys, dispersions (including cermets), ceramic products and mixtures containing uranium enriched in U235, plutonium or compounds of these products
  - Uranium compounds:
    
    2844 2000 10
    
    Oxide
    
    2844 2000 20
    
    Fluorides
    
    2844 2000 30
    
    Other
  - 2844 2000 50
    
    Other
- 2844 30
  
  Uranium depleted in U235 and its compounds; thorium and its compounds; alloys, dispersions (including cermets), ceramic products and mixtures containing uranium depleted in U235, thorium, or compounds of these products:
  - 2844 3010 00
    
    Thorium compounds
  - 2844 3020
    
    Uranium compounds
    
    2844 3020 10
    
    Oxide
    
    2844 3020 20
    
    Fluorides
    
    2844 3020 50
    
    Other
  - 2844 3050
    
    Other
    
    2844 3050 10
    
    Uranium metal
    
    2844 3050 50
    
    Other
- Radioactive elements and isotopes and compounds other than those of subheading 2844.10, 2844.20 or 2844.30; alloys, dispersions (including cermets), ceramic products and mixtures containing these elements, isotopes or compounds; radioactive residues:
- 2844 5000 00
  
  Spent (irradiated) fuel elements (cartridges) of nuclear reactors
2845

Isotopes other than those of heading 2844; compounds, inorganic or organic, of such isotopes, whether or not chemically defined:
- 2845 1000 00
  
  Heavy water (Deuterium oxide)
- 2845 2000 00
  
  Boron enriched in boron-10 and its compounds
- 2845 3000 00
  
  Lithium enriched in lithium-6 and its compounds
- 2845 4000 00
  
  Helium-3
- 2845 9001 00
  
  Other
2846

Compounds, inorganic or organic, of rare-earth metals, of yttrium or of scandium, or of mixtures of these metals:
- 2846 1000
  
  Cerium compounds
  - 2846 1000 10
    
    Cerium oxides
  - 2846 1000 50
    
    Other
- 2846 90
  
  Other:
  - 2846 9020
    
    Mixtures of rare-earth oxides or of rare-earth chlorides
    
    Rare-earth oxides except cerium oxides:
    
    2846 9020 05
    
    Containing lanthanum as the predominant metal
    
    2846 9020 15
    
    Containing yttrium or scandium as the predominant metal
    
    2846 9020 40
    
    Other
    
    Rare-earth chlorides except cerium chlorides:
    
    2846 9020 82
    
    Containing yttrium or scandium as the predominant metal
    
    2846 9020 84
    
    Other
  - Other:
    
    2846 9040 00
    
    Yttrium bearing materials and compounds containing by weight more than 19 percent but less than 85 percent yttrium oxide equivalent
    
    2846 9080
    
    Other
    
    Mixtures of rare-earth carbonates other than of cerium carbonate:
    
    2846 9080 70
    
    Containing lanthanum as the predominant metal
    
    2846 9080 75
    
    Other
    
    2846 9080 90
    
    Other
2847 0000 00

Hydrogen peroxide, whether or not solidified with urea
2849

Carbides, whether or not chemically defined:
- 2849 1000 00
  
  Of calcium
- 2849 20
  
  Of silicon:
  - 2849 2010 00
    
    Crude
  - 2849 2020 00
    
    In grains, or ground, pulverized or refined
- 2849 90
  
  Other:
  - 2849 9010 00
    
    Of boron
  - 2849 9020 00
    
    Of chromium
  - 2849 9030 00
    
    Of tungsten
  - 2849 9050 00
    
    Other
2850 00

Hydrides, nitrides, azides, silicides and borides, whether or not chemically defined, other than compounds which are also carbides of heading 2849:
- 2850 0005 00
  
  Of calcium
- 2850 0007 00
  
  Of titanium
- 2850 0010 00
  
  Of tungsten
- 2850 0020 00
  
  Of vanadium
- 2850 0050 00
  
  Other
2852

Inorganic or organic compounds of mercury, whether or not chemically defined, excluding amalgams:
- 2852 10
  
  Chemically defined:
  - 2852 1010 00
    
    Mercuric oxide, mercuric cyanide, mercuric oxycyanide and mercuric potassium cyanide
  - 2852 1090 00
    
    Other
- 2852 90
  
  Other:
  - 2852 9005 00
    
    Albuminates, tannates and phosphides of mercury
  - 2852 9090 00
    
    Other
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:
- 2853 1000 00
  
  Cyanogen chloride (chloorcyan)
- 2853 90
  
  Other:
  - Phosphides, whether or not chemically defined, excluding ferrophosphorous:
    
    2853 9010 00
    
    Of copper (phosphor copper), containing more than 15 percent by weight of phosphorous
    
    2853 9050 00
    
    Of other metals or nonmetals
  - 2853 9090
    
    Other
    
    2853 9090 10
    
    Gallium arsenide wafers, undoped
    
    2853 9090 90
    
    Other
- I. HYDROCARBONS AND THEIR HALOGENATED, SULFONATED, NITRATED OR NITROSATED DERIVATIVES