Chapter 28:

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


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